Sadie moved with her mother to a big mansion.. The reason her mother decided to move into a mansion is because the owner of the mansion is her best friend.. Leyla Sadie's father died because a killer killed him Sadie always being mean and cold in these period.. The fact that she didn't want to moved to another mansion

as they enter the mansion owner created them Sadie's mother:"get ready to meet Leyla's son/daughter." they enter the mansion