There were 5 of us. Katie, Bailey, Gabby, Hannah, and I. We were all having a sleepover at my house at the time. There were rumors on the street that there was a serial killer occupying the abandoned house next door to mine. They say that the killer's name is Adam. None of us believed it. That was a mistake.

Harley Quinn seeks vengeance on Mr. J for replacing her. She teams back up with the Gotham girls and maybe even the bat crew.