AllMovie

A repentant womanizer gets more than he bargained for when his rampaging manhood takes on a life of its own. Smooth-talking bachelor Rich (Cam Gigandet) has bedded half of the ladies in Chicago when his inability to commit begins to take its toll. In the wake of driving away yet another potential girlfriend (Jamie Chung), depressed Rich grows convinced that his penis is the problem, and makes a wish that it would simply disappear. The next day Rich's boxers are empty, and his member has taken the form of a guy (Nick Thune) who turns his life upside down in a neverending search for sex. Now, with his mischievous alter ego completely out of control, Rich must find a way to set things right, and learn what it really means to be a man.