A comfortable well to do home, a small Yorkshire town in 1908 and three couples married on exactly the same day, by the same parson, are celebrating their silver wedding anniversaries. 

Highly respectable pillars of the community, devout chapel goers, their self righteous pomposity implodes when they learn that their marriages are invalid and that they are, in fact, living in sin! 

Sit back and enjoy the pandemonium as it ensues and their comfortable lives unravel.