CBS announced Unforgettable would not be returning for a fourth season.
This is the second time the show has been cancelled. In May 2012 the show was cancelled after one season, however the network reversed the decision and produced two more seasons.
Carrie Wells, an enigmatic former police detective, has a rare condition that makes her memory so flawless that every place, every conversation, every moment of joy and every heartbreak is forever embedded in her mind. It's not just that she doesn't forget anything - she can't; except for one thing: the details that would help solve her sister's long-ago murder.