Side A. The attic. A young woman discovers the key to unlocking a web of deception, manipulation and murder in this tense psychological chiller. Side B. Crawlspace. Three attractive female tenants mention to their landlord, Karl, that they're hearing tapping noises at night in the crawlspace above their rooms. While Karl tells them it's rats, in reality he is spying, and plans to trap them in the crawlspace and make them his victims.