On a crisp fall morning in Austin, Texas, it is a day no different from any other for young mother Hailey Adams. Until it is. She goes out for her morning jog and does not come back.

When Hailey turns up weeks later with no recollection of where she was—and either unable—or unwilling—to explain what happened to her, those closest to her first question her mental status and then her motives. Under mounting pressure from the police and the media, as well as her loving husband, the popular fitness influencer begins to have flashbacks.

But the more Hailey continues to dig, the more reasons she uncovers to keep the truth hidden—from the law, from the media, and especially from her family. She soon realizes she’s not the only one to recently disappear under mysterious circumstances—and her nightmare may be far from over.