You can watch "Only Murders in the Building" on the following streaming platforms:

• Disney+ (including the STAR section in some regions), where all seasons are available to stream legally

• Hulu, which also offers all four seasons of the show for streaming

The series is available in multiple languages and formats, including 4K and Dolby Vision on Disney+ in some regions

. Hulu offers a free trial for new subscribers, making it another option to watch the show online

. In summary, the primary and official platforms to watch "Only Murders in the Building" are Disney+ and Hulu.