From the New York Times bestselling author of The Overnight Guest comes a twisty locked-room thriller about a mysterious, high-stakes game show that proves life-threatening, perfect for fans of Ruth Ware and Lucy Foley.

"Big Brother meets Clue in this utterly original and incredibly tense locked-room mystery." —May Cobb, author of A Likeable Woman

A mysterious high-stakes game proves life-threatening in this twisty thriller from the New York Times bestselling author of The Overnight Guest

The Best Friend. The Confidant. The Senator. The Boyfriend. The Executive.

Five contestants have been chosen to compete for ten million dollars on the game show One Lucky Winner. The catch? None of them knows what (or who) to expect, and it will be live streamed all over the world. Completely secluded in an estate in Northern California, with strict instructions not to leave the property and zero contact with the outside world, the competitors start to feel a little too isolated.

When long-kept secrets begin to rise to the surface, the contestants realize this is no longer just a reality show—someone is out for blood. And the game can’t end until the world knows who the contestants really are…

And don't miss these other enthralling thrillers by Heather Gudenkauf:

The Weight of Silence
These Things Hidden
Little Mercies
Missing Pieces
Not a Sound
Before She Was Found
This is How I Lied
The Overnight Guest