EXCLUSIVE: In a competitive situation, Screen Gems has picked up rights for the U.S. and much of the world to Keep Watching, a thriller from Voltage Pictures starring Bella Thorne.

Formerly known as Home Invasion, the pic revolves around a family imprisoned by ScreenGemslogointruders who play a life-and-death game in which the mysterious rules become clear as the night unfolds. Thorne stars as a disillusioned teenager intensely guarding a personal secret. The cast also includes Ioan Gruffudd, Chandler Riggs, Natalie Martinez, Matthew Willig and Leigh Whannell. Alex Heineman and Andrew Rona are producing. No word on when the pic will invade theaters.

Voltage Pictures financed Keep Watching, from rookie feature director Sean Carter and first-time screenwriter Joseph Dembner, who wrote it on spec after hatching the concept with Alex Heineman. Nicolas Chartier and Craig J. Flores are producing via the Voltage Films banner, and Andrew Rona and Heineman via the Picture Company. WME Global represented domestic rights and brokered the multimillion-dollar deal with Jonathan Deckter on behalf of Voltage.

Sony’s Screen Gems released this year’s The Wedding Ringer and The Perfect Guy, and its 2016 slate includes Patient Zero, When The Bough Breaks, Underworld 5 and Oxford. Voltage is in production on The Headhunters Calling, and its upcoming releases also include Fathers And Daughters and The Secret Scripture.

Thorne is repped by WME, LBI Entertainment and Hirsch Wallerstein. Carter is with Verve, Kaplan/Perrone Entertainment and Bloom Hergott.