Lullaby (1970)

John and Sarah have it all. A happy marriage, two wonderful children, and a beautiful house in a picturesque neighborhood. They're truly living the American Dream, until the sun sets over their new home, and an unknown terror steps out of the shadows. Sarah is missing. A mysterious caller has their eyes set on the children. And a neighbor knows more than they'll admit. With the safety of his family at stake, John propels himself into a chaotic spiral of violence and blood of which he may never return, all to protect those he loves the most.