What would you be willing to sacrifice for someone you loved? Some have given up dreams of travel and exploration to be with their partner. Others have relinquished the option of various sexual partners to be monogamous with their true love. Still more have relocated across the country or in another part of the world so their partner could take advantage of an employment opportunity. Then there are those that have put their own lives in peril, stepping between a jealous former lover, a criminal or some other threat to protect the one they love. What if that threat is invisible and unstoppable? What do you do then? The answers are troubling and confounding in “The Night House.”

Beth (Rebecca Hall) is mourning the death of her husband Owen (Eric Jonigkeit). He rowed a small boat out into the middle of the lake behind their home, took off and neatly folded all his clothes, then put a handgun in his mouth and pulled the trigger. Beth doesn’t know why Owen took his life and his suicide note doesn’t clear up anything. It reads: There is nothing. Nothing is after you. You’re safe now. Beth is also having dream-filled and troubled sleep. She dreams of a house filled with women that look like her, but aren’t her, and Owen kissing and hugging them. The stereo in her home turns on randomly at night, playing the same song at full volume. She wakes up in other parts of the house with no memory of how she got there. Then there’s the presence. She feels as if she’s not alone. Her neighbor Mel (Vondie Curtis-Hall) and friend and co-worker Claire (Sarah Goldberg) offer support and advice, suggesting she get out of the house and away from the memories, but Beth needs to solve the mystery surrounding her husband and his choice to end his life.

The advertising for “The Night House” has been vague to protect the plot as it is not what it seems…but still is. I’m being vague as well, as the film is a slow burn that needs to build to an exciting and revelatory finish. Knowing much more than the basic plot would ruin all the surprises.

Rebecca Hall is clearly angry as Beth. She feels abandoned and betrayed. Owen’s death is so unexpected and seemingly random, she can’t put her emotions anywhere other than towards him. It’s a feeling she’s familiar with as we learn Beth has been prone to depression in the past. Owen is the one that always pulled her back from the abyss. He’s now gone, so her energy is focused on figuring out why. Hall conveys all these emotions vividly in scenes of unexpected anger, sarcasm and self-pity. Hall easily slides from each of these feelings throughout the film, and it lives and dies with her performance. Hall’s Beth is alone in all the scenes where she makes discoveries or experiences out-of-the-ordinary things, conveying her fear, loneliness and anger often only with her face. It’s a masterful performance that rivets the viewer’s attention. We focus on Beth as if there is no one else in the room (and often there isn’t), but we soon realize Owen is always there. In her mind, her memories, her heart.

The story of “The Night House” is like an M. C. Escher painting. Impossible angles, stairways and hallways leading back on themselves but still winding up in the same places. There’s a great deal of surrealism and misdirection in the film. We are never sure if Beth is dreaming, hallucinating or going insane until the final act. The story written by Ben Collins and Luke Piotrowski is a maze within a house of mirrors. Nothing much is what it seems until the very end. This may not be everyone’s cup of tea, and with a Cinemascore of C- it clearly isn’t, but it is a powerful and effective thriller unlike most of the movies within this genre.

“The Night House” is rated R for some violence/disturbing images, and language including some sexual references. I can’t give you much detail about these various factors. Beth asks a young woman if she slept with her husband but uses more graphic language. There are various brief scenes of violence against women. Beth is attacked.

“The Night House” is an engrossing thriller that may not be that thrilling to many at first. I just ask you give it a chance to progress through the story as the ending is worth it.

“The Night House” gets five stars out of five.

Subscribe, rate, review and download my podcast Comedy Tragedy Marriage. Each week my wife and I take turns picking a movie to watch, watch it together, then discuss why we love it, like it or hate it. Find it wherever you get podcasts.

Follow me on Twitter @moviemanstan.