At night the zoo is a magical place: grasshopper mice whisper their cutting little secrets, bats practice their syntax, and penguins dream of Patagonia. Caitlin is a young woman in peril. While studying and drawing the animals at the zoo, she realizes that she is being stalked by a strange person who mimics the behavior of jungle cats. Tom, her new true love is of no help and may even be married with children. When a keeper is murdered Caitlin engages the help of a zoo security guard to be her bodyguard. Eddie, an ex-cop and murder suspect, is a man with a shady past. He devises a plan to trap the "Beast" in the zoo-using Caitlin as bait.