Green Room (2015)

Pat, Sam, Reece and Tiger are members of a punk band, the Ain't Rights, traveling through the Pacific Northwest. After their gig is cancelled, a local radio host, Tad, arranges a show through his cousin, Daniel, at a neo-Nazi skinhead bar in the woods outside Portland, opening for the Nazi metal band Cowcatcher.

After the show, Pat returns to the green room to retrieve Sam's phone. He sees the body of a woman, Emily, who has been stabbed to death by Werm, a member of Cowcatcher. Pat calls the police, but the bar employees Gabe and Big Justin confiscate the band's phones and hold them captive in the green room with Emily's friend Amber. Outside, Gabe pays a skinhead to superficially stab another to create a cover story for the police when they respond to the call. Gabe consults with the bar owner and skinhead leader, Darcy, who decides to gift Cowcatcher with poisoned drugs to kill the band, eliminating witnesses.

The band overpowers Big Justin and holds him hostage, taking his pistol and a box cutter from his pocket. They negotiate through the door with Darcy, who asks them to surrender the pistol. Pat agrees, but as he opens the door, Amber sees that it is a trap. Darcy's men slash at Pat's arm until he drops the gun, partially severing his hand before his friends can secure the door. Big Justin attacks the band and Reece unsuccessfully tries to choke him into unconsciousness; Amber instead kills him with the box cutter.

The band discovers an underground lab in the basement, but its only exit is apparently locked from the outside. Arming themselves with improvised weapons, they exit the green room into the empty club. A skinhead, Clark, unleashes an attack dog, which kills Tiger. Amber and Pat drive the dog away with microphone feedback. Reece flees through a window, but is killed by a skinhead.

Pat, Amber, and Sam retreat to the green room. Darcy sends Daniel into the club to kill the band, who Darcy claims murdered Emily. Amber tells Daniel that Werm murdered Emily after discovering Daniel and Emily planned to leave the skinheads. Daniel agrees to help them escape and leads the band into the club, where he is shot dead by the bartender. The group kills the bartender and takes his shotgun, but Clark's dog kills Sam. Darcy's men wound Amber, who retreats to the green room with Pat.

Darcy sends skinheads Jonathan and Kyle with Gabe to kill Pat and Amber, who form a plan. Pat lures Jonathan into the drug lab while Kyle remains in the green room, where Amber sneaks up and kills him with the box cutter. She then outsmarts Jonathan and shoots him with Kyle's gun. Gabe agrees to help Pat and Amber and heads to a farm to call the police.

Pat and Amber find Darcy arranging the band's van to make it appear that they were trespassing and started the violence. Pat and Amber kill Darcy's last men, including Clark, before finally outgunning Darcy himself. Pat and Amber sit and wait for the police.