Did He or Did She? Olivia and Ryan Croft are living the American dream. New York's most beautiful couple. Rich. Happy. Until one night when one discovers a dark secret about the other. Come morning—Olivia is in a coma. The prime suspect is Ryan, CEO of Sleep Better Pharmaceuticals, known for their groundbreaking sleep medication. Yet to the world, Ryan is just a polite, grieving husband. He even gets fired after refusing to leave Olivia's hospital bedside. Jobless, under investigation, and drowning in medical bills, Ryan faces foreclosure. Desperate, he rents out Olivia's locked upstairs room—the one they promised never to speak of again. He believes he can hide its secrets for three months. Then Maggie Quinn arrives. The Tenant.

She is flamboyant and vibrant in her late twenties. A California painter who loves true crime and sweets. She insists he call her Magpie and pays in full, upfront. Only problem is that Maggie's presence deeply unnerves Ryan because: 1. She's dangerously seductive and manipulative 2. She knows too much about Olivia 3. She shouldn't be able to afford the rent 4. Maggie Quinn is Olivia's exact double