Medical student Amy Brenner is spending the night on a locked psychiatric ward.

Amy has been dreading her evening working on Ward D, the hospital’s inpatient mental health unit. There are very specific reasons why she never wanted to do this required overnight rotation. Reasons nobody can ever find out.

And as the hours tick by, Amy grows increasingly convinced something terrible is happening within these tightly secured walls. When patients and staff start to vanish without a trace, it becomes clear that everyone on the unit is in grave danger.

Amy’s worst nightmare was spending the night on Ward D.

And now she might never escape.

YouTube baking sensation April Masterson knows the secret to the perfect gooey brownies. Or how to make key lime squares that will melt in your mouth. But if you keep watching her offline, you may find out some other secrets about April. Secrets she’d rather you didn’t know.

Like where did her son go when he snuck out of the house? What was she doing with the local soccer coach behind fogged windows? And what’s buried in her backyard?

Everyone has secrets. Some are worse than others. April’s secrets are enough to destroy her.

I’ll make sure of that.

Casey's cabin in the wilderness is not built for a hurricane. Her roof shakes, the lights flicker, and the tree outside her front door sways ominously in the wind. But she's a lot more worried about the girl she discovers lurking outside her kitchen window.

She’s young. She’s alone. And she’s covered in blood.

The girl won't explain where she came from or loosen her grip on the knife in her right hand. And when Casey makes a disturbing discovery in the middle of the night, things take a turn for the worse.

The girl has a dark secret. One she’ll kill to keep. And if Casey gets too close to the truth, she may not live to see the morning.