俄罗斯喜剧，萨沙·季托夫的生活十分完美：他年轻有为，是广告公司的设计经理。但是一天早上，一个小女孩闯入了他的生活。她叫阿莉娅，她告诉萨沙自己是他的女儿。萨沙是否准备好迎接命运带给他的惊喜呢，这是否会改变他早已习惯的单身生活呢？

　　Contemporary Moscow. While riding her bicycle one day, Alyona, a shy librarian, accidentally collides with Liza, a dazzling blonde. When she wakes up in the hospital, she discovers that she and Liza have exchanged bodies.

　　Contemporary Moscow. After a car accident, champion athlete Sergey Borozdin suddenly has a psychic ability to see past events. When he becomes a suspect in a series of murders, he is forced to use this ability to find the real killer.