Article continues below advertisementWhen Was Season 5 of 'Only Murders in the Building' Confirmed?Source: Hulu/YouTube'Only Murders in the Building' is expanding its run on Hulu with a fifth season.More secrets - and murders - will be laid bare in the fifth season of Only Murders in the Building.In September 2024, a little over a week after the show's fourth season premiered, Hulu officially ordered Season 5 of the hit mystery comedy series. Reports at the time indicated the next installment would continue the story over the next 10 episodes.