The plot thickens like Irish stew when the group settles into Ballybantry Castle, where a ghost is said to wander the halls. But it's no blarney when a very real corpse turns up in one of the guest rooms. While the murderous malarkey has Emily step-dancing as fast as she can, one sure thing emerges from the mists: not even St. Paddy himself could drive out the spiteful serpent that slithers among them!