Bong Soo loses his memories from an accident, which disables him to recognize his family. Due to this condition, and his ever-increasing odd behaviors, his relationships get mixed up. He treats his wife as his daughter and mistakes her daughter for a friend. Ironically, his friends and family start to accept the situation as they derive some comfort and warmth from it.

The story is of a playboy who has, through an unavoidable circumstance, run into a woman from his past. Woo Ji Hoon makes a living as a magician and nothing is easier for him than attracting beautiful women. He has an irresistible charm that draws all females to his side like a magnet - all but one, the charming teacher Koo Hee Won. Ji Hoon tried to make her his latest love possession but was bluntly turned down. As luck would have it both Hee Won and Ji Hoon can't resist the temptation of arranging a blind date on the Internet setting in motion a firework of hilarious consequences.

Ji Yeon is a beautiful university student, majoring in music. She is dating Dong Seok, but Dong Seok’s parents want him to study abroad. The day before he is scheduled to leave South Korea to study abroad, he prepares a proposal event for Ji Yeon. Ji Yeon does not appear at the event.

Following a brutal murder case, the police are baffled to find out that the assailant, whose body was found on the scene with the victim, had already been dead for three months. Meanwhile, journalist Jin-hee sets up a live interview with an anonymous caller claiming he is the true killer behind the mysterious murder. When the man announces three more murders will occur in the hands of the undead, Jin-hee must face the sinister forces beyond understanding.