Mysteries abound when a family returns from vacation to discover a dead man in their daughter’s bed. Thinking they’re investigating the murder of a squatter, Castle and Beckett soon find…

Prentiss enlists two former friends from Interpol to track down an old enemy, as Reid discovers clues that could help the BAU locate the parents of an autistic boy.

The BAU is called to upstate New York to investigate mysterious disappearances. Also, Prentiss gets some disturbing news about one of her former Interpol colleagues.