Bone Lake (2025) is an American erotic thriller released in theaters on October 3, 2025. We’ve had some fascinating results during sex scenes in horror movies, so we were curious how a film billed as an erotic thriller might affect our test subject’s heart rate. We locked her in, hoping the mix of sex and violence would get her pulse pounding quicker than Viagra.

SYNOPSIS:

A couple’s vacation at a secluded estate is upended when they’re forced to share the mansion with a mysterious couple. A dream getaway spirals into a nightmarish maze of sex, lies, and manipulation, triggering a battle for survival.

Where We Monitored: In Theater

Test Subject: Kathy

Age: 39

Gender: Female

Fears: Erotophobia or Fear of sexual encounters

Resting HR: 60-65bpm

Walking HR: 80-85bpm

ANALYSIS:

The opening was exactly what you’d hope for, if the television show Naked and Afraid took a wrong turn. A shocking moment hit men right where it hurts and immediately set the tone, our subject’s heart rate jumped from 63 bpm to 72 bpm within the first minute. She wasn’t thrilled, but we were giggling.

A rental mix-up brings two attractive couples together under one roof, setting up what seemed destined to become a steamy, suspenseful affair. Unfortunately, it never quite delivered, there was little sex, and even less violence.

A sprinkle of sexual tension made our subject squirm, nudging her pulse only slightly above her resting rate. She endured stiff dialogue and wooden performances, waiting for the suspense to finally kick in. The first real spark came an hour in, with a modest twist that kept her from nodding off. Then, at 1:18, the film’s pulse finally quickened: a brutal, grotesque showdown erupted, spiking her heart rate into the eighties.

CONCLUSION:

Despite a bloody and impressively gory finale, Bone Lake (2025) never managed to stay hard-hitting for long. Our subject flatlined through more than 75% of the runtime, and without that last burst of carnage, the film would’ve been dead on arrival.The ending erupted, but the rest of the movie? Let’s just say it couldn’t quite keep it up… We’ll be here all week, don’t forget to tip your bartender and try the Bone-In wings, they’re to die for.

Bone Lake (2025) : Burns an average of 147 Calories

Bone-In Wings : 100 Calories

How many Fear Calories did you burn watching Bone Lake (2025) ?  Let us know in the comments below or on Instagram, and Facebook