Rotten Tomatoes link
Hollywood Reporter review
By all means, go to "mother!" and enjoy its roller-coaster-of-weird exhibitionism. But be afraid, very afraid, only if you're hoping to see a movie that's as honestly disquieting as it is showy.
A very Rosemary's Baby-like intimate horror tale that definitely grabs your attention and eventually soars well over the top to make the bold concluding statement that, for some creators, art is more important than life.
The first portion is very Ingmar Bergman-like, a suffocating chamber play with simpler dream machinations and a frightening world of unease. The second portion turns into outright chaos, a carnival ride of horrific human behavior.