At what point is survival just not worth it anymore? That’s the existential question raised by It Comes At Night, the latest from quirky director Trey Edward Shults (Krisha). The film opens brutally, with a woodsy dad (Joel Edgerton) killing his ill but fully cognizant father-in-law in order to stop the spread of a mysterious plague. Grandpa’s tossed in a ditch and set on fire, at which point mysterious things begin to happen. This eerie, slow-burning film is about the line between survival and paranoia, and the insane measures people will take in the name of self-preservation.