Jonas Clark, A 33-year-old investment banker, is jolted awake one Friday morning by his girlfriend, in bed next to him, screaming and covered in blood. When he discovers the blood is his, and that he's bleeding from painful puncture wounds in both his hands and his feet, he becomes even more alarmed. He has no memory of how they got there, or who made them.

In the ensuing weeks, Jonas struggles to come to terms with the wounds—and the pain—as they appear, then disappear, every Friday thereafter. Is he subconsciously inflicting the wounds himself, as the doctors claim, or is there something more surreal going on? Join Jonas on his journey of discovery as he searches for answers, finally finding them—in the last place he thought to look.