Longworth investigates a murder in Gibtown, a community populated with human sideshow descendants, and everyone is a suspect. Jim and Callie try to figure out the exact meaning of their relationship.

The FDLE enters the battle between good and evil when a Pentecostal preacher is found dead in a snake pit. Longworth's investigation into the House of God eventually leads him to the Big House and a fatal case of mistaken identity. Meanwhile, Sam's departure has Callie questioning her own relationship with Longworth.