Peter and Lily have a secret. They love Sonny & Cher, their favourite celebrity couple of all time. With a string of hits in the 1960s and a successful American variety TV show in the 70s, Sonny and Cher were mismatched, they were camp, they were good honest fun. Decades later Peter and Lily are still listening to their records, still lip-syncing to their songs and practicing their comedy routines every evening. But beneath their obsession with sparkle and showmanship is a tragedy. And as dark truths start to pop their bubblegum act, it becomes clear not everything is quite as it seems.