Classified as a 'Comedy/Drama' this is a tour-de-force performance by Rosa Byrne ('Linda') of a Therapist who's slowly losing her grip.
The comedy, in the increasing knowledge that she's in no position to be giving advice, the varying degrees of problems her patients come to her with, the symmetrical aspects of her own family and others, the slow unravelling of her life as small incidents become gradually larger, and the surprise appearances by Christian Slater and Conan O'Brian add to it all.
I'll give no spoilers or plot points, merely that if there's an Oscar for Best Actress this year it better be her.