Theatre 625 is a British television drama anthology series, produced by the BBC and transmitted on BBC2 from 1964 to 1968. It was one of the first regular programmes in the line-up of the channel, and the title referred to its production and transmission being in the higher-definition 625-line format, which only BBC2 used at the time.

Mysterious and unearthly deaths start to occur while Professor Saxton is transporting the frozen remains of a primitive humanoid creature he found in Manchuria back to Europe.

Young orphaned Heidi (Julia Lockwood) is taken to live high in the Swiss Alps with her cantankerous od grandfather (Roger Maxwell) who shuns the mountain community and lives a solitary existence in a remote bothy.

Four men involved in the investigation of a German millionaire at the end of World War II are found murdered with tiny dolls beside their corpses.

The pretty owner of a 'greasy spoon' cafe helps a handsome customer involved in robbery and murder.

Newspaper reporters compete with London police to solve a murder.