The Inheritance

Billionaire Charles Abernathy invites his four estranged children back home on the eve of his 75th birthday, where he reveals a dark secret: someone or something is coming to kill him by dawn, and he'll only be protected if they help keep him alive. The family discovers that their inheritance depends on their ability to protect Charles from an unseen threat. As tensions rise among them, it becomes clear that the killer may not be a human at all, but a malevolent entity with a sinister connection to Charles' past. In the end, only one of Charles' children will leave the estate unharmed.