Two strangers are drawn to a mysterious pharmaceutical trial that will, they're assured, with no complications or side-effects whatsoever, solve all of their problems, permanently. Things do not go as planned.Source: TMDb
Currently, you can only stream Maniac on Netflix in the United States.
Unfortunately, you cannot buy or rent Maniac on any of the streaming services in the United States at the moment.
The first season of Maniac was released in 2018.
There is currently one season of Maniac, which was released in 2018.