what is the movie my secret billionaire about

Maya Monroe, a renowned designer, becomes a housewife after marrying Brendan Foster. On their anniversary, her mother-in-law accuses her of infidelity, plotting to replace Maya with Marjorie Sutton, a wealthy heiress. Manipulated by both women, Brendan believes the lies. Marjorie causes Maya to miscarry, and Brendan, deceived further by a fake paternity test, believes the child wasn’t his. Later, the Sutton family reveals Maya is their true daughter and that Marjorie is an imposter. Determined to get justice, Maya outsmarts Marjorie, who ends up imprisoned but later escapes and kidnaps Maya. Brendan rescues her, but Marjorie dies, taking his mother with her. In the end, Maya and Brendan reconcile, and after the birth of their child, they find happiness together as a family.

For the sake of her mother, Yvonne had to lie and let her boyfriend take the blame and go to prison unjustly. Six years later, Yvonne unexpectedly reunited with him, who was filled with strong resentment.

While sweeping the streets, cleaner Carleigh Quinn encounters Roderick Sawyer stepping out of a luxury car. He hands her a bank card, explaining he's terminally ill and wants to help her. Surprisingly, Carleigh claims she can cure him, but three renowned doctors accuse her of being a fraud. When Roderick suddenly collapses, everyone rushes to his home where the doctors admit only the legendary "Sovereign of Scales" could save him. Carleigh reveals herself as this mystical healer with mastery across dozens of fields, cures Roderick, and leaves. Later, her fiance Kieran Harrell delivers divorce papers, and at their wedding, publicly abandons her to marry Aurora Quinn instead. Roderick arrives with a marriage proposal, announcing to everyone's shock that Carleigh is the revered Sovereign of Scales.

As the CEO prepares to leave the country, he asks his wife to help manage the company in his absence. When Claire Bailey arrives, she is mistaken for an ordinary intern instead and faces mistreatment from the staff. However, Claire is no pushover. With her strong personality, she gradually stands up for herself and proves her worth, earning respect and setting things right.

Queenie was taken out of the orphanage by her parents. She thought she could finally live a happy life, but upon returning home, she discovered the existence of a favored fake daughter, Winnie. Fearing that Queenie would take everything from her, Winnie resorted to all sorts of underhanded tactics. To frame Queenie, she even pushed her fiancé's sister down the stairs, leaving her in a vegetative state. In court, Queenie's parents biasedly supported Winnie and deleted surveillance footage. Her brother even testified against her, sending her to prison. After five years of suffering, Queenie emerged from prison feeling hopeless and no longer yearning for familial bonds. She just wanted to escape that home.\

Jake Lynch and Lucy Scott met in college and have been married for twenty years. For all those years, Lucy concealed her identity as the heiress of a wealthy family to protect Jake's pride, working humbly as a cleaner while quietly supporting Lynch Group. However, Jake dismisses Lucy as a mere housewife, seeing her as nothing more than a cleaning lady. When he demands a divorce, Lucy is devastated to discover that he already has someone new. Heartbroken, she agrees to the divorce and reclaims her identity as the heiress of Galactic Group. After undergoing surgery to remove a brain tumor, Lucy fights for custody of their child, Kase. At the Scott Group banquet, she publicly reveals her true identity as the heiress, standing alongside her father, Samuel Scott. Jake, realizing the gravity of his mistake, is filled with regret and tries to win Lucy back. However, Lucy stands firm, rejecting his attempts at reconciliation. In the end, she takes Kase and embarks on a journey to travel the world, leaving her past behind.

Zoe Smith, the eldest daughter of the Clarks, has faced the harsh reality of being cast out of her family alongside her mother, all due to the family's deep-seated preference for sons over daughters. Determined to reclaim her place and restore her family's honor, Zoe pours her heart and soul into her work. Through relentless perseverance and unwavering dedication, she rises to become the successful chairperson of a prestigious company. Meanwhile, her father begins to recognize the errors of his ways, and they eventually reconcile.

In his last life, Yael Summers wrote several songs for his eldest sister, making her a famous singer, but his brother Zayne took the credit. After being misunderstood by everyone, Yael died on a winter night. Unexpectedly, Yael was reborn and went back to five years ago. This time, he had already known the true colors of his family. So he decided to leave the family, sing those songs himself, and try to become a top singer.

After returning to her biological family in her past life, Ava Devin was severely mistreated by the fake heiress and her three brothers. They even poisoned her and married her off to a dead person. Upon being reborn, Ava uses her past knowledge to send the fake heiress and her brothers behind bars. Eventually, she becomes the chairman of Nash Corp, with absolute authority in her hands.

Frank sacrificed a bright future to become a stay-at-home dad to support his wife Betty's career, only to face her constant ridicule and their daughter's contempt. It wasn't until he rejoined the Junlie Group and regained his status that Betty finally realized his true value. However, by then, Frank had already made up his mind to start a new life, leaving Betty to grapple with regret and deep reflection.

Ten years ago, the once optimistic Sam Rider was forced to leave his family and venture to a distant land due to a misunderstanding. He lived alone, experiencing life's trials and tribulations. During this time, Sam encountered a life-threatening accident, hanging by a thread until he was saved by a girl, Helen Foster. Grateful for her rescue, he silently stays by her side and protects her to repay the debt of saving his life. The two eventually become lovers. However, life after marriage isn't a happy one. The burdens of life and various misunderstandings place immense pressure on both of them, dealing a huge blow to their relationship. Nevertheless, Sam doesn't give up. In the end, through his efforts, Sam earns approval from Helen's family and ultimately lives a happy life with Helen.

After mistaking her pregnant sister-in-law for a mistress, Megan publicly humiliated Mandy, who was later revealed to be the only one able to save her son's life. When the truth emerged, the family regretted alienating their true savior.

The youngest female investor on Finance District refuses an arranged marriage with the Golden family. After a drunken night and being drugged, she's saved by her secret admirer and actual fiance, Keir Golden. He pretends to be a poor sugar baby, letting Clara "keep" him. A year later, when family business troubles force Clara to accept the arranged marriage, she tries to break it off with Keir, only to discover her sugar baby is actually her powerful fiance who saves her from the scheming McDowell family.

Zelda Lang never expects to find herself in a whirlwind marriage with Theo Wolfe, the powerful CEO of the Wolfe Corp. Bound by a promise to her late mentor, she secretly sneaks into Theo’s room every night to treat his mysterious illness. Despite her efforts, Theo keeps his distance, wary of her motives. Little does he know, the woman he's pushing away is the very miracle doctor he's been searching for all along…

Yancy Shaw, the heiress of the Shaw family, was set up by Cindy and lost her memory. After getting saved by Celia, she was given a new name Miranda. In an odd coincidence, Yancy married Zack Ramsey. Cindy pretended to be Yancy and wanted to marry Zack. She tried to set Miranda up several times. In the end, Zack and Miranda teamed up to expose Cindy's crimes.

Julie Scott, once the revered princess of Xandar, is brought down by the very emperor she served. Fearing her growing influence, he betrays her, setting a deadly trap within the palace walls. Surrounded and outnumbered, Julie fights to her last breath. By her side, her devoted husband, Paul Murray, chooses to die protecting her. When Julie opens her eyes, she's reborn as the wife of a wealthy modern heir who looks exactly Paul but is cold and distant. To make matters worse, a scheming mistress challenges her at every turn. But Julie won't be defeated—she's determined to tame the chaos, build her own fortune, and handle her distant "husband" on her terms.

Edith had a gentle appearance and a naive, kind, and tender personality. While working, she met Elliott, who was being set up on dates by his grandmother. He remained indifferent to all the girls but fell in love with Edith at first sight. However, Edith was focused on her career and had no interest in romance. Her parents, believing she had reached a marriageable age, arranged a suitable match for her that she felt unable to refuse. Upon learning of this, Elliott prepared a bride price and worked hard to win her over. Eventually, Edith accepted his proposal. After marrying into the Sanders family, she was showered with love and care. When she discovered that she had been switched at birth, she ultimately gained the affection of both her adoptive and biological parents, achieving a happy ending with Elliott.

Cyrus Campbell, originally the heir of the wealthy Campbell family, breaks with his family for his wife Sophia Smith and survives by delivering food for five years. Unexpectedly, Sophia Smith is vain and materialistic, influenced by her friend to develop an ambiguous relationship with her former lover, Simon Harrison. She even chooses to visit Simon’s grandmother who only has a cold, missing the final moments of Cyrus’s critically ill grandmother.