Twin sisters face tragedy when the elder marries a wealthy playboy to support the younger’s education. Enduring his infidelity, she discovers their son is his mistress's child, pushing her to suicide. The younger sister returns too late but vows revenge. Assuming her sister's identity, she infiltrates the playboy’s life, revealing the child's true parentage and dismantling his relationship with the mistress. A secret admirer, the family's true power, supports her, intensifying the playboy's regret and unraveling the mistress's schemes.
