Cornwall, 1933. Alice Edevane lives on a beautiful estate with her family. The days flow by as usual, and nothing threatens the ideal world, devoid of worries. But one day the irreparable happens - Theo, Alice's younger brother, mysteriously disappears. And soon after, the lifeless body of a family friend is found. What is this - suicide or crime? And if it’s suicide, could Theo’s disappearance be the reason? In 2003, detective Sadie Sparrow finds herself in Cornwall. Walking through the forest, she accidentally discovers an abandoned house - the same one in which the tragedy occurred. Thoughts about her inconsolable family and poor child haunt her, and she decides to solve the case and find Theo... or his killer. And there is still a chance for this, because Alice is alive, which means that hope for the truth has not yet dried up.