In summertime in Manhattan, the plain and average Richard Sherman (Tom Ewell) sends his wife and son for vacation in the country. Sherman is the key man of a publishing firm, Brady & Company, which publishes cheap pocket books. The faithful Sherman has a routine life with his family and dreams on being successful with women. When a beautiful and sexy blonde (Marilyn Monroe) lodges the upstairs apartment of his small building, Sherman first opens the front door for her and then he invites her to