By all accounts Kevin Parsons is leading a virtuous life. But like all people, Kevin has his secrets. And someone wants them revealed.

While driving home from graduate school, Kevin receives a call from a deluded stranger who calls himself Slater. Slater demands that Kevin confess his sin in the next three minutes or the car he's driving will be blown to pieces. With the threat, he offers a riddle: What falls but never breaks, what breaks but never falls?

Thus starts a harrowing chain of threats with progressively higher stakes. Another riddle, another three minutes. Confess your sin, Kevin.

The problem is Kevin has no idea what sin. And Slater's cycle won't stop until he's dead.

Now only Samantha, the women he once loved more than life itself, can help him uncover the secrets of a mysterious past. But Samantha may soon be dead as well.

Releasing through the "One Word" challenge