Writer Park lives by writing day by day. One day, he stumbles upon a woman, Hae-joo, who collapsed on the street while taking a walk in the early morning. Hae-joo asks Park to take her home, saying she needs a place to rest. He kindly gives up his studio for a stranger. He begins his secret and cheeky story.

Hae-joo continues Dong-woo's story to writer Park. Dong-woo keeps calling men on weekends then one day, a man nicknamed uncle comes to Hae-joo. And Dong-woo and uncle got into a secret relationship with Hae-joo. Park, who listened to Hae-joo's story, gave Hae-joo a massage, and Park began to take over Hae-joo's body.