After a decades-long stint in prison, former serial killer Carol is looking to kick back and relax in her new retirement home...until a fellow resident drops dead and Carol has to prove she actually didn't do it this time.... Carol is delighted to be leaving her tiny prison cell behind to take her place in a luxury retirement home. She's hoping her past as a serial killer won't come to light so she can make a few friends and find some murder-free hobbies. But it's not long before a fellow resident—who happens to be a former police commissioner—drops dead, and Carol's  true identity is leaked—making catching up over daily activities of bingo and baking rather awkward.  Just her luck, Carol soon realizes that the victim wasn't the only former law enforcement officer at Sheldon Oaks—it's filled to the brim with former cops, barristers, and government representatives, her newfound friends included. And everyone thinks Carol's guilt is a no-brainer, but she is ready to prove them dead wrong...without killing anyone, for once.