As Riley (Jennifer Love Hewitt) struggles to come to grips with her high-priced infidelity with a client, Kyle (Brian Hallisay) shows up at home following his unexpected release from jail.
When the CSI team investigates the brutal murder of a family, they trace the killer to the house next door, which might belong to the "Dr. Jekyll" serial killer. (TV-14)
Melinda helps a patient of Eli's who thinks he's being watched by his sister's ghost. Meanwhile, Melinda and Jim are concerned when Aiden talks about his shiny friends that aren't ghosts but something else.
When Hodges and Wendy take a group of high school CSI Explorer Scouts on a field trip, they embellish their role in solving cases and take their assignment a little bit too far. (TV-14)
