On this week's all-new episode of The Ghost Whisperer, Ned's Occult Anthropology Professor is stalked by a secret admirer.

Naturally, because this is The Ghost Whisperer, the stalker in question is deceased. What will it take to solve the mystery? Melinda and a Ouija board.

Comedian Margaret Cho guest stars as the trouble professor. Get an early look at her on the CBS drama below:

Remember to return to TV Fanatic each week for the latest Ghost Whisperer reviews.

Below, you can watch the official CBS promo for this episode.

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Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.