One of Jerry Colonna's last performances, as Bob Hope's sidekick from his radio days to the USO days. Jerry Colonna also starred in two Hope-Crosby Road films: The Road to Singapore (1940) and The Road to Rio (1947).
Johnny Carson plays an uncredited part as the Masked Killer.
This was the third whodunit special. The first being Murder at NBC airing October 19, 1966 and the second being Shoot-In at NBC airing November 8, 1967 that had an all-star cast.