“Tommy” (Anson Boon) is an odious cretin of a teenager who bullies, boozes and snorts his way through life until one night he finds himself all alone and somewhat the worse for wear. Next morning, we meet “Rina” (Monika Frajczyk) who has arrived at a remote country house where she is rather perfunctorily interviewed for a cleaning job by “Christopher” (Stephen Graham). On her subsequent tour of their home she is…