Ripple (2018)

A teenage girl is making her way into a party late at night when she is stopped by an alarming noise in the distance. She wanders into the remote corner of the backyard where she finds a wheezing girl who seems to be in trouble. The girl is not as vulnerable as she seems and turns out to be a ghostly figure who has been haunting the house for years following her untimely death brought on by her parents.