Something strange is going on at HM Prison Long Rudford. The hard men of B wing are going soft. They're putting on wigs and costumes and taking singing and dancing lessons. They've turned Thesp, for an awfully amateur production of the prison governor's musical, Nelsoo - The Musical. But all is not what it seems. Behind the theatrical posturing lies an elaborate escape plan. Ringleaders Jimmy and Rudy have come up with what they consider a watertight scheme to coast their way to freedom. But all is not plain sailing. First Jimmy falls for Annabel, the beautiful prison support officer who co-stars with him in Helsan, then the Head of Prison Security becomes suspicious about the inmates intentions. Will it be curtains for Jimmy and his gang, or will they pull off the performance of their lives? And for Jimmy will the choice be love or liberty?