Hairstylist Tom Kan, a village chief's son with an overseas education Ngau Chi Fei and veterinarian Ngau Siu Bo each has his own girlfriend but still goes out to hook up with other girls. One night, a messenger from Hell brings the trio to Hell, their sin was making women of the world suffer. Although they have a chance to return to life, they have to lose their most important "organ". Within a month they have to find women who truly love them to say "I love you" in order to return to normal. The trio suffers all kinds of pain and inconvenience, and Siu Bo even "accidentally" becomes pregnant. As the date draws closer, would the women who they have hurt still be willing to say "I love you"?