The true daughter of a mafia family, Evelyn, who had been separated from her family for twenty years, resolutely accepted the demand of the fake heiress Jessica and lay down in a crystal coffin overnight in order to gain the sense of family belonging she had always dreamed of. However, Jessica secretly blocked the ventilation openings, causing Evelyn to die in extreme agony. Her three brothers, deceived by Jessica, watched with their own eyes as their sister perished inside the crystal coffin. It was not until all the truth came to light that they learned Evelyn had tested bulletproof vests on her own body and gambled with her life in Russian roulette just to prepare gifts for them. The three brothers instantly collapsed, falling into endless pain and despair. Although they personally carried out Jessica’s execution, they could never bring their sister back to life, and in the end, consumed by remorse and helplessness, they went completely insane.