A brother and sister are sent to their grandparents' remote Pennsylvania farm for a week, where they discover that the elderly couple is involved in something deeply disturbing.
Olivia DeJonge
Becca
Ed Oxenbould
Tyler
Deanna Dunagan
Nana
Peter McRobbie
Pop Pop
Kathryn Hahn
Mom
Celia Keenan-Bolger
Stacey
Samuel Stricklen
Conductor
Patch Darragh
Dr. Sam
