Matt Spiller drives a souped-up taxi, suffers from SAD, and has a troublesome past. It's Christmas Eve, and one of his fares is about to become extremely problematic. Helen Spiller still loves her husband, but can no longer live with his moods. She's a wonderful mum, with a screw quietly working loose in her head. Now, their eldest daughter has hooked up with a very bad boyfriend. Spiller thinks he...