| Lethal Obsession | |
| Director: | Peter Patzak |
| Distributor: | Tivoli Film |
| Country: | West Germany |
Lethal Obsession (German: '''Der Joker''', also known as The Joker) is a 1987 German crime-thriller film written and directed by Peter Patzak and starring Peter Maffay, Tahnee Welch, Michael York, Armin Mueller-Stahl, Elliott Gould, and Massimo Ghini.[1] [2]