Bullet Head (2017) on Netflix

Plot summary

Stacy, Walker and Gage are career criminals whose getaway car crashes into an abandoned warehouse after a robbery goes wrong, killing the driver. Stacy reaches another driver, who will not come until the next day, so the three wait. Gage, sick from opiates, wants a fix. In flashbacks, Blue keeps a Perro de Presa Canario for dog fighting and has abused it; the injured dog is to be put down by the handler. Searching the warehouse for a car to leave in, the men find drugs and medical supplies in a locker room, where the dog stands over the handler's body. It chases them until they barricade it in.