The Retreat

A lesbian couple with a rocky relationship goes to a pre-wedding retreat and ends up fighting for their lives when a group of militant serial killers tries to murder them.
Renee and Valerie, a couple at a cross roads in their relationship, leave the city to spend the week at a remote cabin with friends. But when they arrive, their friends are nowhere to be found. As they stumble through their relationship woes, they discover they are being hunted by a group of militant extremists who are determined to exterminate them.