In the Only Murders in the Building Season 2 finale, set one year after neighbors Oliver Putnam, Charles-Haden Savage and Mable Mora solved a second murder for their podcast, everyone was assembled for the opening night of a Broadway show. Oliver -- who had been struggling to return to the Great White Way since the start of Season 1 -- was back in the director's chair and checking in on his lead actor -- who was feuding with cast mate Charles. Eventually, the lights went up, and the star of the show began to deliver his opening monologue, only to drop dead partway through. This subverted the premise established by the series' title and left the audience with numerous questions about the latest murder -- and the victim.
Source:https://www.cbr.com/only-murders-in-the-building-paul-rudd-murder-mystery/