Episode 9 of "Quantum Leap"
s01e09 Play It Again, Seymour
Title: Play It Again, Seymour
Director: Aaron Lipstadt
Writer: Donald P. Bellisario, Scott Shepherd
Guest Stars: Willie Garson (Seymour), Richard Riehle (Lt. Lannon), Jeanette Miller (Old Lady), Don Maxwell (Policeman), Hap Lawrence (Bartender), Kevin Mockrin (Little Woody Allen), Paul Linke (Lionel), Steve Nevil (Chuck), Ron Ulstad (Bandleader), Don Keith Opper (Crooner), Barbara London (Mama), Tony Heller (Nick Allen / Mirror)
Plot Outline:
With looks that could double for Humphrey Bogart, Sam is Nick Allen, a private investigator looking for the murderer of his partner and, if he doesn't find the answer in time, himself. The case is solved with a number of Casablanca references as Sam launches a new pulp novelist along the way.