Shark in a Bottle (2000)

Guy Normal probably not his real name is clumsy has amnesia and has fallen into the hands of an unscrupulous man who arranges killings for hire The Arranger trains Guy to be a killer and theres evidence that Guy perpetrated a mass murder in an Arizona post office then sends him to do various jobs Although Guy bumbles the jobs get done But Guy rebels against this life tries to reconstruct his past and falls in love with the Arrangers mistress who also has no place else to go When Guy becomes expendable his days seem numbered Can Guy outsmart the mastermind and the highly skilled assassins sent to kill him