Paul Rudd joins season three of Only Murders In The Building

In the season two finale of Only Murders In The Building, there was one case that was closed.

Paul Rudd made a late appearance as the volatile theatre actor Ben Glenroy in the new episode of "I Know Who Did It." We only meet Glenroy for a few minutes, enough for him to get into a fight with Charles-Haden Savage, before collapsing on the stage floor in front of the audience.

A new mystery wound tightly and poised for unraveling after the conclusion of the epilogue. The former told Glenroy to stay away from her and that he knew what he had done.

Who is "her" and what did Glenroy do? We will have to wait for next season to find out, but we are certain there will be more surprise guests in store for us. Selena Gomez's Mabel Mora is fed up with stumbling into murder cases, as she closes the season with, "You've gotta be fuck kidding me."

The first season of Only Murders in the Building received 17 nominations, including a nod for Martin and Short. Nathan Lane and Jane Lynch have guest appearances in the first season. The series is executive produced by Dan Fogelman, Jess Rosenthal, Jamie Babbit, Martin, Short, Gomez, and JohnHoffman.