A headless doll. A deserted island. A haunted lighthouse. Twelve-year-old Jen's summer vacation is not going anything like she expected it to. She's staying with her Aunt Liv, who lives on an island off the coast of Maine. The island is mostly famous for its lighthouse, which is rumored to be haunted by a ghost. Aunt Liv is an artist who specializes in making one-of-a-kind dolls. She also runs a doll hospital. People send her their dolls from all over to repair.

Jen notices some creepy things about the house, like flickering lights and something that sounds like faint whispering. Then one of the dolls that Jen has been helping her aunt work on is found broken. A neighbor girl tells Jen that her aunt's house is haunted by a ghost who's looking for her lost doll. Jen doesn't want to believe her. But after more dolls are broken, she starts to get scared. What if the ghost is real?