Life in Adam Rapp's play is nsty LaBute-ish, and short. Like Neil LaBute, who made his reputation with In the Company of Men, Rapp posits a tiny universe overwhelmed by the vicious pastimes of a charming narcissist. In act one we meet Davis, an upwardly mobile book editor traveling Europe with his suicidal college pal, a playwright named Matt. Prescribing sex for Matt's depression, Davis brings him Christina from Amsterdam's red-light district--but not before cynically creating the circumstances for deep awfulness in act two. Chris Arnold's Thunder & Lightning Ensemble production is serviceable, and Andy Hagar supplies an endearingly squirrelly Matt. But Andy Carl's Davis fails to deliver the charisma that would make his influence believable. This Davis is merely a jerk. --Tony Adler a Through 9/9: Thu-Sun 7:30 PM, Trap Door Theatre, 1655 W. Cortland, 773-332-9939, $15.