TV Only Murders in the Building - Season 4 Episode 1 : Once Upon a Time in the West Only Murders in the Building - Season 4 Episode 1 : Once Upon a Time in the West 8.451/10 by 1854 users Charles, Oliver & Mabel are whisked to Los Angeles where a legendary film studio intends to adapt their podcast. However, Hollywood's glitz is overshadowed by a stunning clue about Charles' stunt double & friend Sazz Pataki. Details Casts Posters Images Title Only Murders in the Building - Season 4 Episode 1 : Once Upon a Time in the West Alternative Titles Homicídios Ao Domicílio, Só os Assassinos no Edifício, Só os Assassinos do Edifício, 大楼里只有谋杀, 公寓大楼里的谋杀案, רק רציחות בבניין, Убийства в пределах здания, Тільки вбивства у будівлі, omitb First Air Date 2021-08-31 Last Air Date 2025-09-09 Number of Episodes 50 Number of Seasons 5 Genres Comedy, Mystery, Crime, Networks Hulu, Casts Steve Martin, Martin Short, Selena Gomez, Michael Cyril Creighton Plot Keywords , Charles-Haden Savage Steve Martin Oliver Putnam Martin Short Mabel Mora Selena Gomez Howard Morris Michael Cyril Creighton Episodes List Only Murders in the Building Season 4 :Episode 1 Once Upon a Time in the West Once Upon a Time in the West 2024-08-27 Three strangers share an obsession with true crime and suddenly find themselves wrapped up in one. Only Murders in the Building Season 4 :Episode 2 Gates of Heaven Gates of Heaven 2024-09-03 Three strangers share an obsession with true crime and suddenly find themselves wrapped up in one. Only Murders in the Building Season 4 :Episode 3 Two for the Road Two for the Road 2024-09-10 Three strangers share an obsession with true crime and suddenly find themselves wrapped up in one. Only Murders in the Building Season 4 :Episode 4 The Stunt Man The Stunt Man 2024-09-17 Three strangers share an obsession with true crime and suddenly find themselves wrapped up in one. Only Murders in the Building Season 4 :Episode 5 Adaptation Adaptation 2024-09-24 Three strangers share an obsession with true crime and suddenly find themselves wrapped up in one. Only Murders in the Building Season 4 :Episode 6 Blow-Up Blow-Up 2024-10-01 Three strangers share an obsession with true crime and suddenly find themselves wrapped up in one. Only Murders in the Building Season 4 :Episode 7 Valley of the Dolls Valley of the Dolls 2024-10-08 Three strangers share an obsession with true crime and suddenly find themselves wrapped up in one. Only Murders in the Building Season 4 :Episode 8 Lifeboat Lifeboat 2024-10-15 Three strangers share an obsession with true crime and suddenly find themselves wrapped up in one. Only Murders in the Building Season 4 :Episode 9 Escape from Planet Klongo Escape from Planet Klongo 2024-10-22 Three strangers share an obsession with true crime and suddenly find themselves wrapped up in one. Only Murders in the Building Season 4 :Episode 10 My Best Friend's Wedding My Best Friend's Wedding 2024-10-29 Three strangers share an obsession with true crime and suddenly find themselves wrapped up in one.