Molly Shannon on Joining 'Only Murders in the Building' for Season 4: 'Happiest Set in Hollywood' | THR Video
Molly Shannon on Joining 'Only Murders in the Building' for Season 4: "Happiest Set in Hollywood" | THR Video

Molly Shannon dishes on joining Only Murders in the Building for season four.

Plus, reveals what it was like working with Selena Gomez, Martin Short and Steve Martin, calling it the "happiest set in Hollywood."