The last episode of the first season of the Series to be filmed, though it aired before Blueprint for Murder (1972)
This is generally regarded as the weakest episode of Season 1. Producers Richard Levinson and William Link had assiduously mapped out all the plots for the first season's episodes, only to have Universal spring a last-minute request for another episode, given the show's strong ratings. Consequently, this was hastily put together and, although it wasn't the last episode to air, it was the last to be filmed.
Roger's car is a Ferrari 365 GTB/4 Daytona.