A couple, Jill and Luke, move into a new house, where they experience strange occurrences. They discover a mysterious door in the basement, which leads to a secret passage. A clown named Pretzel, who is revealed to be Jill's imaginary friend from childhood, begins to cause trouble. Jill seeks help from a psychologist and later from a man named Jason, who claims to have an imaginary friend of his own. Jason teaches Jill how to control Pretzel, but it is later revealed that Jason has been using his imaginary friends to kill people. Jill and Luke work together to stop Jason and his imaginary friends, and in the end, they emerge victorious. The movie ends with Jill and Luke having a child who inherits the power to create imaginary friends, and the child creates their first magic door.
Here are the key facts extracted from the text:
1. A couple moves into a new house and starts hearing strange noises in the basement.
2. They investigate and find a mysterious door in the basement wall that wasn't there before.
3. The landlord doesn't know where the door came from.
4. The couple's son, Luke, tries to open the door and finds a secret passage.
5. Luke's wife, Jill, starts seeing a clown everywhere and becomes scared.
6. Jill finds a box with childhood memories and a book that triggers her memories of the clown.
7. Jill discovers that the clown is her imaginary friend from childhood.
8. The clown, Pretzel, starts causing trouble and attacking people.
9. Jill meets a man named Jason who claims to have an imaginary friend that kills people.
10. Jason helps Jill control her imaginary friend, Pretzel.
11. Luke becomes jealous of Jason and discovers that he is a murderer who creates imaginary friends to kill people.
12. Jason is arrested, but he creates an army of imaginary friends to escape.
13. Pretzel protects Jill and fights off Jason's imaginary friends.
14. Jason is killed by his own imaginary friend.
15. The story ends with Jill and Luke having a child who inherits the power to create imaginary friends.
16. The child creates their first magic door, suggesting a continuation of the story.