Only Murders In The Building -- “Hello Darkness” - Episode 208 -- A blackout throws the city into chaos. As the trio races to save a loved one from the killer, other Arconia residents begin to explore unexpected connections in the midst of darkness -- all enhanced by Gut Milk and a yodel or two. Mabel (Selena Gomez), Oliver (Martin Short) and Charles (Steve Martin), shown. (Photo by: Craig Blankenhorn/Hulu)