What was the last movie you saw...? Part IV

[Typhon]

Horrors of the Black Museum (1959)

In London, the police have a Black Museum in which they keep various weapons and devices that were confiscated from murderers they have apprehended.  When they begin investigating a new string of murders, a writer of murder mysteries (Michael Gough) reports on how the investigation is struggling to stop the crimes.  It turns out the writer has his own Black Museum.

Good story with a decent amount of mystery.  7/10