Some bonds are stronger than blood.

Earlier this year, Arrow Films acquired the possession road movie Threshold for release in various territories, which was shot with two iPhones over the course of a 12-day road trip with a crew of three, and largely improvised by the lead actors. Fangoria brings us the word today that the film is coming to ARROW on May 3, and they’ve also debuted the official trailer.

“The film tells the story of a pair of siblings embarking on a voyage of new discovery. After joining a cult, Virginia (Madison West) believes herself to be possessed and somehow bonded to a complete stranger. Estranged from her family after years of drug addiction, she confides to her brother Leo (Joey Millin) who reluctantly agrees to take her on a cross-country road trip to find the man and escape the curse. But as their journey continues, there is a growing feeling that her instincts may be right, and that their ultimate destination may prove to be more shocking than either of them could ever imagine.”

From co-directors Powell Robinson and Patrick R Young, the film had its public World Premiere at the Salem Horror Fest in the US in October and premiered in the UK at the Soho Horror Film Festival in the UK in November. Check out the trailer below.