Hack Ward thought he had found a niche market for his skills as a private investigator when Hollywood came to Detroit. When washed up director Will Peyton gets pegged to direct a low-brow family comedy starring a chimp and a perpetual bad-girl pop star, Hack gets brought in by Peyton to keep an eye on starlet Haley Goslin. It's not because Peyton is concerned about her image; it's because Peyton is in love with the younger woman and doesn't want her fooling around on him.

It isn't long, however, before events on the set start turning sinister. Hack is on hand the day the chimp has a psychotic episode and attacks Haley. Saving her life sets off a chain of events that bring Hack and Haley closer together and puts them in more and more danger. On the morning she gets called into the set to shoot some additional footage, they have no idea they are getting called into a trap.

When it comes to murder, which is the more dangerous animal? Chimp ... or man?