n Halloween, an armored car driver is shot several times with his own gun. Monk is called from the crime scene by Ambrose, who says that their father is coming to visit, but not before Captain Stottlemeyer shoos away a pigeon and Monk finds a clove cigarette on the ground. While the captain interviews a witness and discovers that the killer was not after money, the Monk brothers wait for their father and Ambrose hands out carefully counted treats. Meanwhile, a man dressed as Frankenstein's monster snatches candy from some of the children trick-or-treating with Julie. Leaving Ambrose alone with Natalie, whom he seems to be developing a crush on, Adrian investigates the candy theft and discovers that all of the victims received candy from "the special man" (Ambrose). He also finds a clove cigarette linking the two crimes. When Julie convinces Monk to take her out trick-or-treating again because she hardly got any candy, he comes across another clue: a dead pigeon he believes is the same one the captain shooed away. He convinces a reluctant and skeptical Stottlemeyer to have the pigeon autopsied and the pieces of the puzzle fall together.

Résumé de IMDb.com