Seven strangers. Seven secrets. One perfect crime.

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?