Every few days, Bob's phone rings from a number he doesn't know. It's always Gus, an old friend whose memory is failing, saying hello as if for the first time. Bob keeps blocking the calls. Until he realizes one of Gus's forgotten messages holds a clue to his missing grandson. A warm, funny, heartbreaking mystery about the people we stop listening to. (Note: Contains themes of dementia, grief, and a child's disappearance)