"I woke up in my apartment. Everything was the same — except my girlfriend had been dead for three years. At least, that's what the photo on the wall said. "In loving memory of Nina. 1995-2021." But Nina was alive this morning. She's the one who sent me here. My name is Alex. Twenty-four hours ago, I was a normal guy with a normal life. Now I'm trapped in a parallel universe where the woman I love is a ghost."