Want to learn more about the high school life of a serial killer? Then boy do we have a trailer for you. ‘My Friend Dahmer’ shows what Jeffrey Dahmer was like before his first murder. From collecting roadkill, to stalking a neighborhood jogger, and everything in between. This trailer looks promising, and the actor playing Dahmer seems to do a good job of ‘crazy’ without it seeming fake. Check out the trailer below.

My Friend Dahmer debuted at Tribeca Film Festival April 21 and is set for wide release this fall.