The Roommates (The Roommates #1)

When guarded orphan Samantha wakes up in a strange house with five other teens: charming jock Austin, introverted techie Henry, enigmatic loner Maddie, conspiracy theorist Keith, and aspiring dancer Lynne, none of them know how they got there or why they've been chosen. Trapped together, their unease drastically shifts to horror when one of them is found mysteriously dead. Suspicion brews, trust fractures, and tensions rise as the group struggles to learn the truth about their captivity.
However, things change when their captor, Mother, a cunning and manipulative AI, reveals to them that they are unwilling participants in a sinister social experiment broadcast to an eager live audience. Forced to endure grueling challenges designed to expose their fears and secrets, the teens find themselves pitted against each other in a psychological game of wits and survival. With every passing day, Mother's influence tightens, paranoia spreads, the nation controls their fates, and the house itself becomes as much an enemy as the unknown killer among them.
As the teens are pushed to their breaking points, Samantha must decide whether to keep her walls up or lead this fractured group to defy Mother's control. But to truly escape and regain control, they must rely on each other to show unity. Yet as alliances are tested and truths are uncovered, the price of rebellion might be their lives.