Mildly entertaining 40's chiller that gives Bela Lugosi yet another chance to play a severely tormented character. He stars as Mr. Kessler, a sinister yet sophisticated and eminent gentleman who lives in a large villa with his daughter and a bunch of household staff. Whenever Mr. Kessler sees the appearance of his supposedly dead wife (long story....), he gets into some sort of trance and murders people. Other persons are wrongly sentenced to death for these crimes while Kessler himself doesn't really realize what he's doing. I'm not exactly sure what the film tries to accomplish by focusing on the "whodunit"-element so much while the story practically opens with Lugosi committing murder. It's like playing a game of 'Clue' when you already know it was Colonel Mustard! Oh well, I guess the mystery automatically vanishes when Lugosi stars in the film: he always did it! Don't expect logic neither as the whole dead-wife situation doesn't make the least bit of sense. Still, "Invisible Ghosts" has some atmospheric moments and occasionally offers a modest scare. The acting is above average with Lugosi in one of his best post-Dracula roles. The sequences in which he's 'tranced' reminded me a little of Dracula, as Bela's grimaces and gestures are very similar. This is an okay movie, good to waste an hour of your life with.