Darkness Falls (2003) ending / spoiler
The police officer that believes the witch is real rescues Kaitlyn, Kyle and Michael and drives them to the lighthouse to turn Darkness Falls's lights back on. The cop dies, so does the doctor and nurses that they find hiding in the hospital, and Kyle, Kaitlyn and Michael get the lights turned on just before the witch tries to get them. She apparently 'dies' but then comes back and attacks Kyle. He sets fire to her and she burns up and explodes.
Submitted by Shadyz Lady