The most precious things are lighter than air.

Writer Paul Benjamin is nearly hit by a bus when he leaves Auggie Wren's smoke shop. Stranger Rashid Cole saves his life, and soon middle-aged Paul tells homeless Rashid that he wouldn't mind a short-term housemate. Still grieving over his wife's murder, Paul is moved by both Rashid's quest to reconnect with his father and Auggie's discovery that a woman who might be his daughter is about to give birth.