Asylum (1972)

In order to secure a job at a mental institution, a young psychiatrist must interview four patients inside the asylum.

From memory: Well made horror anthology with some nasty bits has the usual issue that the quality of the episodes differs quite a bit.

 Halliwell*: "Lively horror compilation with echoes of Caligari and Dead of Night. Gruesomeness sometimes overdone."

Maltin***: "Four fun chillers..."

The Night Walker (1964)

A woman is haunted by recurring nightmares, which seem to be instigated by her late husband who supposedly was killed in a fire.

The Psychopath (1966)

Four men who were involved in the investigation of a German millionaire at the end of WW II are found murdered with tiny dolls left next to their corpses.