The girl in the alleyway

A girl named Layla enters an alleyway on her way home from school one day.She bumps into a strange man while walking.As she goes to leave the alleyway he starts to act really weird around her.She ignores him and continues on her way home.She realises that he slipped a mysterious note with an address on it in her school bag.When she gets to the address he tells her something that will change her life forever