Plot summary
Molly is sick of everything that is wrong with Mike's apartment and asks him to move in with her into her mother's house. Mike talks it over with Carl who isn't too happy with it. Peggy throws a birthday party for Dennis ( William Sanderson ), her boyfriend, and Molly makes a cake. After the party Peggy decides to give him a "birthday gift" and confides in Molly. Peggy gets a surprise when he drops dead in her bed. She drags him down, dresses him up and puts in front of Molly's cake before calling Mike to help. Mike eventually finds the reason for Dennis' death. Peggy spends the night at Molly's, where she mourns his death. After seeing Dennis' sad apartment, Mike decides to move in with Molly.
Credits
Adapted from Wikipedia contributors, Mike & Molly season 2. HTML formatting and reference markers removed.