The Hideous Sun Demon (1958)

Awfully low budget science-fiction nonsense, Scientist Dr Gil (Robert Clarke) is exposed to radiation, however it does not appear to have harmed him... until he sits in direct sunlight and he turns into a reptile! Naturally the only thing to do when this miracle happens is for Gil to be allowed out hospital and live alone in his mansion! He hits the bottle, seduces singer Trudy (Nan Peterson) and kills her minor hoodlum boyfriend George (Peter Similuk) when he faces the sunshine again and re-enters lizard mode.

The police are on the case, well vaguely. Considering a mutant murdering lizard-man is on the loose the police search is rather low-key. But Lizard Gil is finally tracked down to a showdown atop a gas holder...

The film is rather cheap and makes little sense (of course). Gil apparently has a thing for fellow scientist Ann (Patricia Manning) though that doesn't stop him with Trudy. The lack of interest from the government also makes no sense, but then again this was the 1950s so crazy science accidents and bizarre monster threats was probably quite mundane. It might not make much sense but scores high on the cheese-ometer of course.