When Amelia is invited to an all-expenses-paid retreat on a private island, the mysterious offer is too good to refuse. Along with six other strangers, she’s told they’re here to test a brand-new product for Timeo Technologies. But the guests’ excitement soon turns to terror when the real reason for their summons becomes clear.

Each guest has a guilty secret. And when they’re all forced to wear a memory-tracking device that reveals their dark and shameful deeds to their fellow guests, there’s no hiding from the past. This is no luxury retreat—it’s a trap they can’t get out of.

As the clock counts down to the lavish end-of-day party they’ve been promised, injuries and in-fighting split the group. But with no escape from the island—or the other guests’ most shocking secrets—Amelia begins to suspect that her only hope for survival is to be the last one standing. Can she confront her own dark past to uncover the truth—before it’s too late to get out?