The new BBC sitcom - Can You Keep a Secret? –  tells the story of a retired couple who are presented with the opportunity to claim life insurance when the husband is mistakenly declared to have died. 

French, who plays 'widow' Debbie Fendon, said: "This is a sitcom about a very strange little oddball family who commit a massive fraud but pretend that it's no big deal." 

When asked if she can keep a secret herself, she joked: "I have kept a secret for a very long time. Jennifer Saunders is an alien."