The insanity in this film revolves around Marty (Colin Farrell), a mostly drunk hack screenwriter. We follow his crazy journey or meeting psychopathic people who slowly chip away at his Mt. Everest sized writer's block. On his side is Billy (Sam Rockwell) a well-meaning schlub who wants to be an actor, but survives as a bad thief instead. Also providing support is Hans (Christopher Walken), a golden-hearted thief with a very questionable background.
These three amigos get a swift kick in the karma when they realize that Billy has stolen a dog from a mobster Psychopath named Charlie (Woody Harrelson). Through bullets and blood Charlie chases them out of vengeance and the opportunity to recover his beloved Shih Tzu.
This movie has so many crazy turns and writers imaginative cut scenes that it is almost impossible to explain. Insanity and stupidity cross paths on a regular basis and the lines of logic get blurred constantly with these characters. The end result though is a top-notch cast delivering an absurd and funny story. So if you're looking for an adult fun comedy and don't mind lots of blood, then this movie might calm down the voices in your head!