The ghosts from a school shooting hover over the otherwise Sundance-y story of Rudderless, a low-boil drama directed by the actor William H. Macy. The shooting is left offscreen, and the bulk of the film takes place two years later, the sorrow still fresh in the mind of our central character. This is Sam (Billy Crudup), whose son died in the college killing. Once a go-getter of an advertising man, Sam has dropped out; he lives on his boat on an Oklahoma lake and paints houses. Grief leads him to transcribe the songs his late son was writing, and when he performs a tune at an open-mike night, a 21-year-old musician named Quentin (Anton Yelchin, the Chekov from the Star Trek reboot) gets excited about the music. Maybe they should start a band? As antisocial as Sam is, this process will drag him back to the stage—but he doesn’t tell anybody the songs were written by his son, a secret we suspect will detonate at a key moment.