Some viewers find the pacing a bit slow once the action moves from the heist to the circus investigation. While the mystery offers several red herrings, modern reviewers often find the twists somewhat predictable.
A sullen, suspicious figure lurking in the shadows. A jealous knife-thrower and a secretive ringmaster. Critical Highlights Il Lungo Coltello Di Londra 1966
“The cast is headed by Christopher Lee who is grim and imposing... the film presents a lot of suspects and it soon becomes easier to just watch it rather than try and guess who the killer is.” IMDb Some viewers find the pacing a bit slow