Black Museum – The Door Key. ep12, 520319

A security guard dressed in a dark uniform is reaching for his sidearm, which is holstered on his right hip. He stands in front of a brick wall, with his left hand resting on his belt. His facial expression suggests a state of high alertness and readiness to act in case of any threat or danger.
Security Guard Drawing his Weapon --- Image by © Royalty-Free/Corbis "Used with permission from Microsoft."

As he often does, Orson Wells takes us on a tour of the items in the Black Museum. He points out the door key that he features in today’s story of death.

A maid cleans a hotel room and finds a body. The cops scrutinize the personal affects in the room, and the various items in the dead man’s pockets. They are sure that a key they found will unlock the door to a murderer. The maid offers some clues as well when she tells about a man in the room the night before.

Will the new info change the cops mind about the key? All clues are followed up on, and a situation of a love triangle emerges. They also find that door that matches the key. Puzzle pieces begin falling into place quickly.