When lonely screenwriter Adam (Andrew Scott), protagonist of writer-director Andrew Haigh's All of Us Strangers, tells his neighbor and new lover Harry (Paul Mescal) about the death of his parents when Adam was 11 years old, Harry offers his condolences. "It was a long time ago," Adam says, somewhat dismissively. "I don't think that matters," Harry responds. The lasting effects of grief, as expressed in that simple, lovely exchange, are the central theme of All of Us Strangers, a quiet, affecting movie about one man reaching out for human connection.