Shaffer's most notable work was the play Sleuth (1970), which won the Tony Award for Best Play. The play was later adapted for the film version starring Laurence Olivier and Michael Caine. He received Edgar Awards from the Mystery Writers of America for both versions: for Best Play in 1971, and Best Screenplay in 1973.
Shaffer's most notable work was the play Sleuth (1970), which won the Tony Award for Best Play. The play was later adapted for the film version !starring !Laurence Olivier and Michael Caine. He received Edgar Awards from the Mystery Writers of America for both versions: for Best Play in 1971, and Best Screenplay in 1973.