But more likely a whodunnit of Hitchcockian proportions. Directed by Michael Curtiz in 1959 and starring Alan Ladd, it has a strong supporting cast of children, which made the film very unusual.
Ladd was a gentle, somewhat under-rated actor and he was effective as the passive husband and victim in this film. Curtiz's direction is pretty sharp, and there's the usual suspension of disbelief which one has to engage in these kinds of films. But I felt the film was 'small' in scope and would more easily have lent itself to television.
It was predictable in that Carolyn Jones wasn't a strong, leading actor and it was obvious she was going to be bumped off because she didn't have the charisma to last the full distance of the film.