Samhain is a young, angry and bewildered squatter living in an abandoned hotel in the North of England. One day he receives a message: his father – a man he never knew – was an undercover policeman infiltrating the Green movement of the 80s. What's more, he finds out that he too is now a father. As Sam leaves for Europe, he pursues freedom and flees from his responsibilities. Responsibility, however, is hard to escape. Guest is a story of disillusionment, protest and, eventually, redemption.