When Emma gets home after work one evening, she calls hello to her husband Jay, as she always does. But Jay is not there. He is upstairs. And he has ended his own life, seemingly out of nowhere and leaving no note to explain. A photographer, all Jay has left behind is his camera containing five photographs, which are unlike his other work. Desperately trying to comprehend the incomprehensible and struggling to cope in a house that no longer feels like home, Emma follows the images to Cornwall. As the visual mystery of each photograph unfolds, Emma finds herself unravelling and perilously close to breaking point. But could her unlikely salvation lie in the sea, a small community of swimmers and the promise of something Emma thought she didn't want?