Unhappily married to bitter woman who refuses to divorce him, an aging Londoner is eventually driven to kill his wife; he succeeds in staging the death as an accident, but a rugged detective declines to let the matter go in this Robert Siodmak thriller. The film features some great directional touches, such as how Siodmak refrains from showing us the murder, instead leaving everything implied by the protagonist simply grabbing a cane and looking up a staircase in deep thought. What really makes the film work though is Charles Laughton's measured lead performance. Through the gentlest of eye movements and subtlest vocal inflections, Laughton manages to render his character so human and down-to-earth that it is easy to root for him throughout, even when he commits unspeakable acts. His battle of wits with the detective are very good too, with Laughton positioned to bluntly state "why don't you arrest me?" after being hounded so relentlessly by the policeman. The supporting cast is not quite up to Laughton's level, with Rosalind Ivan very one-note as his wife in a performance that only requires her to be shrill. The film is also rather slow to warm up with around half an hour elapsing before the murder. Once the film gets going though, it never lets up. It is simply enthralling to watch and the suggestive final shot provides a pitch perfect note for the film to end on.