The sister

"I did something terrible Grace. I hope you can forgive me..." Grace hasn't been the same since the death of her best friend Charlie. She is haunted by Charlie's last words, and in a bid for answers, opens an old memory box of Charlie's. It soon becomes clear there was a lot she didn't know about her best friend. When Grace starts a campaign to find Charlie's father, Anna, a girl claiming to be Charlie's sister steps forward. For Grace, finding Anna is like finding a new family, and soon Anna has made herself very comfortable in Grace and boyfriend Dan's home. But something isn't right.…