A woman living in fear and trapped in her home is driven to the edge of insanity by a mysterious package in this tense psychological thriller.

Karen Rainey lives a sheltered life on the outskirts of Phoenix, Arizona. For the last five years, she's worked from home, gotten her food delivered, and taken in the occasional housemate to help with rent. But Karen isn't agoraphobic. She's terrified of her ex-boyfriend, Zach. With the help of Karen's testimony, he was found guilty of a string of bank robberies and sentenced to life in prison. And yet, Karen lives in fear of how he might exact revenge.

Karen's current housemate Beth keeps asks what's wrong, and she's running out of ways to avoid the question. But when a mysterious package is left on her doorstep, it sends Karen's world into turmoil. Now Karen and Beth are both trapped inside and terrified of what's coming next. But the threat may be much closer than they know . . .