Was it murder?

I'm watching this 1950's movie (Escapement a.k.a. The Electronic Monster) and it starts off with a movie actor who dies under suspiciaous cercumstances and the studio has a $250,000 life policy on him. So the insurance company sends their agent to check whether things are on the up-and-up and that they really have to pay.
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Plot[edit]
Inquiring into the mysterious death of a Hollywood star, insurance investigator Jeff Keenan uncovers an exclusive psychiatric clinic on the French Riviera. Here, patients who want to escape the stresses of life are hypnotized, then laid out in morgue like drawers and left to dream for several weeks. It turns out that Dr. Zakon, the clinic's ex-Nazi owner, is using a "dream machine" to alter the sleepers dreams, and to impose his will on theirs.