When Everly’s husband and young daughter die in a car crash. A lawyer appears on her doorstep and tells her her husband was not who he said he was and she is a very rich widow. She retreats to a lonely house in the countryside to recover. But there’s a well in the cellar, a spectacularly cold room, and one night, Everly wakes up with a foot hanging over the emptiness of the well and the echo of her daughter’s voice in her ears…