There’s more than meets the eye forJustin LonginHouse of Darkness.The actor, 44, stars alongside real-life girlfriendKate Bosworthin the first trailer for Neil LaBute’s upcoming thriller, which follows “a player out to score” (Long) who drives a woman (Bosworth) home after meeting at a bar.While the man “thinks his beautiful, mysterious date will be another casual hook-up,” the synopsis adds, “their flirtation turns playful, sexy and sinister. Hoping to get lucky, his luck may have just run out.“The2-minute trailerbegins with Bosworth, 39, and Long arriving at her dark “mansion in the woods,” where things soon get cozy between them.“You’re not married, are you?” she asks him, before he replies, “Not at the moment” and she repeats back, slowly, “Not … at … the moment.“Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human-interest stories.Justin Long and Kate Bosworth inHouse of Darkness(2022).Saban FilmsStrange figures begin popping up throughout the house before Bosworth tells Long, “Let’s play a game.““You still don’t understand what’s going on, do you?” she later asks as he seems to descend further into paranoia.“I’m tired. I’m gonna go home,” Long says. “No you’re not,” Bosworth tells him in an eerily calm voice.After Long asks near the end of the trailer, “Is that how it ends?”, Bosworth responds, “Who said anything about ending?“Poster forHouse of Darkness(2022).Saban FilmsWhile their relationship is set to play out in a sinister fashion onscreen, Long and Bosworth have been all smiles in photos since confirming their relationship,after being seen kissing on a beach in Hawaiiback in April.The couple previously revealed that they filmed a project together in Arkansas — now known to beHouse of Darkness— after which Bosworth posteda glowing tribute to Longon Instagram with a carousel of photos, including one playful snap of him cradling Bosworth in his arms.TheRemember the Titansactress and theHe’s Just Not That Into Youactor firstsparked relationship rumorsin March after they were spotted together in Los Angeles.Since then, Bosworth has posteda sweet birthday tributeto her beau and the couple traveled to both Hawaiiand Ireland together, with Bosworthsharing a photofrom the latter trip to her Instagram in June.House of Darkness, also starring Gia Crovatin and Lucy Walters, is in theaters Sept. 9, and on demand and digital Sept. 13.

There’s more than meets the eye forJustin LonginHouse of Darkness.

The actor, 44, stars alongside real-life girlfriendKate Bosworthin the first trailer for Neil LaBute’s upcoming thriller, which follows “a player out to score” (Long) who drives a woman (Bosworth) home after meeting at a bar.

While the man “thinks his beautiful, mysterious date will be another casual hook-up,” the synopsis adds, “their flirtation turns playful, sexy and sinister. Hoping to get lucky, his luck may have just run out.”

The2-minute trailerbegins with Bosworth, 39, and Long arriving at her dark “mansion in the woods,” where things soon get cozy between them.

“You’re not married, are you?” she asks him, before he replies, “Not at the moment” and she repeats back, slowly, “Not … at … the moment.”

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human-interest stories.

Justin Long and Kate Bosworth inHouse of Darkness(2022).Saban Films

Real-Life Couple Justin Long and Kate Bosworth Play a Deadly Game in Trailer for House of Darkness

Strange figures begin popping up throughout the house before Bosworth tells Long, “Let’s play a game.”

“You still don’t understand what’s going on, do you?” she later asks as he seems to descend further into paranoia.

“I’m tired. I’m gonna go home,” Long says. “No you’re not,” Bosworth tells him in an eerily calm voice.

After Long asks near the end of the trailer, “Is that how it ends?”, Bosworth responds, “Who said anything about ending?”

Poster forHouse of Darkness(2022).Saban Films

Real-Life Couple Justin Long and Kate Bosworth Play a Deadly Game in Trailer for House of Darkness

While their relationship is set to play out in a sinister fashion onscreen, Long and Bosworth have been all smiles in photos since confirming their relationship,after being seen kissing on a beach in Hawaiiback in April.

The couple previously revealed that they filmed a project together in Arkansas — now known to beHouse of Darkness— after which Bosworth posteda glowing tribute to Longon Instagram with a carousel of photos, including one playful snap of him cradling Bosworth in his arms.

TheRemember the Titansactress and theHe’s Just Not That Into Youactor firstsparked relationship rumorsin March after they were spotted together in Los Angeles.

Since then, Bosworth has posteda sweet birthday tributeto her beau and the couple traveled to both Hawaiiand Ireland together, with Bosworthsharing a photofrom the latter trip to her Instagram in June.

House of Darkness, also starring Gia Crovatin and Lucy Walters, is in theaters Sept. 9, and on demand and digital Sept. 13.

source: people.com