The missing piece of Charlie O'Reilly

Charlie O'Reilly is the only one who remembers his younger brother, Liam, who disappeared a year ago. It seems the moment Liam vanished, any memory of him went with him. Even Charlie's parents worry when he talks about the brother they don't recall. But Charlie's best friend Ana believes him, and the two are determined to uncover the truth about what happened to Liam even if it means they could disappear too.