The movie is captivating to watch, with little amusing bits about nurse and barrister and cigars and drinks, but its manipulation falls a bit short of being as brilliant as it might seem at first glance. As soon as the barrister smells something fishy, it is clear what game wife was playing, however, it still comes with an extra surprise about the murderer's girlfriend. But on closer inspection the movie is unrealistically manipulative, as even actors were manipulated and hence the murderer plays it in an unconvincing - or rather false - way given the twist ending. The barrister encourages murder, the murder is also not convincing, people do not just drop dead like that. But that can be forgiven, misleading acting - obtained by holding actor in the dark, falls however a bit short of masterpieces like Usual suspects and is more like the Sixth sense. But given the old age of the piece, it is still a compelling work, a few details short of perfection. Also, the whole young lover embrace ending is contrived and illogical if you think about it, given what had happened one might expect the murderer to be more cautious.