In order to remarry into a wealthy family, my wife asked me to be a nanny at my lover's house.

Jude has given his wife Adeline all his money, but when their daughter Lydia falls ill, Adeline spends it on gifts for her wealthy new lover, Nash. She forces Jude to quit his executive job and work as a servant in Nash's villa, promising to visit Lydia in return, yet she keeps breaking that promise.

As Lydia waits in the hospital, Adeline ignores her calls and even steals Jude's last valuable memento to sell. Jude endures every humiliation for his daughter's sake, hiding a secret of his own: he is an undercover agent gathering evidence against Nash, a conman Adeline is determined to marry.

With Lydia's treatment costing a million and Adeline refusing to help, Jude must decide how far he will go to save his daughter.