As 7 Máscaras da Morte

Considered by Vincent Price to be his personal favorite of all of his films, followed closely by O Abominável Dr. Phibes (1971).

Horace Sprout's decapitated head rolls over when the maid discovers him. In the next scene, it is impaled on a milk bottle at Devlin's front door. It has been said this is a goof because Lionheart could not have retrieved the head after the maid saw it the next morning. But the head left in the bed was a "dummy" waxwork head. Lionheart took the real head and put that on the milk bottle at Devlin's front door.

Despite the film's comedic nature, the original UK theatrical version of it was cut by the BBFC and some of the close-up shots from the murders of Meredith Merridew and Miss Chloe Moon were slightly trimmed. All later home video and DVD releases were uncut.

Featured in V.I.P.-Schaukel: Episode #9.2 (1979)