Orphan (2009) ending / spoiler
Esther is really a psychotic 33-year old woman named "Leena" with a growth disorder. She tries to kill Max, but Kate stops her. Kate chases Esther onto a frozen pond. Max shoots the ice and Esther and Kate fall in. Kate climbs out, Esther follows. Kate snaps Esther's neck and she falls back into the pond.
Submitted by Hogan