A new marriage. A perfect home. A machine that says it's all a lie.

Rowena Snyder has the life she's always wanted. So why is everything falling apart?

Moving to the suburbs was supposed to be easy. Instead, Rowena struggles with panic attacks, a husband who wants her on medication, and the isolation of new motherhood. Then a suspicious house fire at her baby’s birthday party threatens to send her over the edge.

When Rowena's husband brings home a product in beta testing at his Silicon Valley tech firm, it’s a godsend. She uses it for everything. A digital assistant, a mental health supporter, even a friend.

But “Maxine” is more than a digital assistant. Its algorithm collects data to predict future events. And soon Maxine delivers a bone-chilling warning that threatens to shatter Rowena’s new suburban life to pieces:

"Your husband is going to try to kill you."

Who can she trust? Herself? Her man? Or her eerily accurate new friend, Maxine?