Relationships can be tricky. They take work and commitment to keep going for the long haul. But what happens when couples get too close? What happens when they lose themselves in each other? That’s some of the focus of the new film Together, which opens in theaters on Friday.

The film debuted at the Sundance Film Festival in January. It comes from writer/director Michael Shanks and is a different kind of horror film. At its heart is couple, played by Alison Brie and Dave Franco, who are going through a rough patch.

As we open, Tim (Franco) and Millie (Brie) have been together for a long time. But they’ve hit something of a rut. Millie has a chance to teach at a new school away from the city. With his music career in a stall, Tim has agreed to go along. But he has some misgivings.

Out in their new home, it’s hard for Tim to find his rhythm. Meanwhile, Millie is doing well at school and has made a connection with a co-worker, Jamie (Damon Herriman), who lives in the neighborhood. The presence of Jamie does little to help Tim feel better about the move.

In an effort to bond a bit, Tim and Millie go on a hike to explore the nearby area. They fall into a cave where they end up riding out a storm. While there, they are forced to drink from a nearby pond. While the water seems fine, it holds a dark secret.

Once out, Tim and Millie begin to feel a pull toward each other. It doesn’t feel natural, and it leaves them in a difficult circumstance. Can they fight this new pull before it’s too late?

This film falls into the body horror genre. There are certainly some strange, tense, and grotesque sequences. One of which serves as an introduction to the stakes of the world before we even meet Tim and Millie. But Shanks does a nice job of laying out the world and building the tension in this story. And he finds great collaborators in Franco and Brie.

The marketing for the film paints it as a great date night movie. It’s obviously a winking nod to the darker elements of the plot, but this is an exploration of relationships. The performances are great here, with Franco and Brie bringing intensity to these roles and this story.

I liked the twist here as we explore what’s happening. The closing sequence, too, is something unbelievable and unforgettable. This isn’t a conventional horror film, but that helps it stand out as something engaging. It’s worth seeking out, especially for those that enjoy a good, creepy story.

Together opens in theaters nationwide on Friday, August 1.

Matthew Fox is a graduate of the Radio, Television and Film program at Biola University, and a giant nerd. He spends his free time watching movies, TV, and obsessing about football. He is a member of the FSWA. You can find him @knighthawk7734 on Twitter and as co-host of the Fantasy Football Roundtable Podcast.