In 1960s Yorkshire, the York Mystery plays are in rehearsal and a farmer strains against his roots as a new world opens up to him. Peter Gill’s influential play about two men in love poignantly reflects on the rival forces of family, class and longing. Huddersfield Thespians continue to celebrate their centenary season in the LBT Syngenta Cellar, with this period drama, staged as part of LGBT history month.