Born from a secret relationship between an Englishman and Marylin Monroe, Ben (Kevin Moore) spent his entire life sheltered within the walls of The Town Hall Hotel, pampered by the staff and keeping his real identity under wraps. On his deathbed, he has left a video-recorded last will, where he incites its executors to take revenge against a ruthless grifter called Eddie 'The Hammer' (Ged Forrest).
Gathered at a drinks reception, after having received a colour-coded wristband and a lanyard with a key, ticketholders are shown the video and introduced by the host (Mark Oosterveen) to the life of the hotel's most iconic guest. Divided in teams, the participants are to prove their intelligence, following some written directions and solving a series of puzzles. Along the way, they meet the grandchildren of those who contributed to young Ben's welfare and education: the nanny, the bellboy, the chambermaid, the pool's attendant and the barman.
