In the plot, Jongsu (Ah-in Yoo) is a delivery man who, during a delivery, meets Haemi (Jong-seo Yun), an old neighbor who makes him an unusual request: to take care of her cat while he goes on a trip to Africa. When she returns from her trip, Haemi introduces the delivery man to an enigmatic young man, Ben (Steven Yeun), whom she met during the African season. One day, Ben tells Jongsu about an unusual hobby he practices.
