Tom (Kevin Spacey) is a powerful business elite, but he has neglected his family because he has devoted too much time to work. It is the birthday of Tom's daughter Rebecca (Malina Weissman). Tom, who almost forgot about it, hurried to the pet shop to buy a cat as a gift for his daughter. What Tom didn't expect was that he was cast a spell by the owner of the pet shop, Felix (Christopher Walken), and his soul entered the body of the pet cat. Felix told Tom that he could only return to the human body if he learned how to be a competent husband and father. However, the lifespan of a cat is very short. In the limited time, can Tom complete the task assigned to him by Felix?