A bereaved father and assassin descends into delirium as he murders a group of anonymous teenage boys one by one for the Mexican cartel, unaware the final target is his long thought dead son.

Why would a movie audience pay to watch a film about a nutjob ("descends into delirium") killing teenagers for an evil organization ("the Mexican Cartel"); teenagers who may be innocent as well as "anonymous" -- whatever that means? Who is the audience supposed to root for?