The Commissioner's niece makes a bet that she can sleep for one night in the master bedroom of a haunted house, then disappears without trace. The team decide to stay the night as well, but the Chief also vanishes. He finds himself alone, surrounded by ghostly figures, sinister statues and whispered messages, whilst Ed, Mark and Fran try to find out where he has gone.

When somebody takes pot shots at Fran's hot-headed cop boyfriend, he soon comes under suspicion for a handful of assaults and two murders. All the trouble seems to be linked back to a case he investigated with his one-time partner, now turned private eye; but is it a case of cop-turned-bad, or is it something else?