I Smile Back - 2015 - 7/10

Well acted across the board, but depressing, disturbing film of mental illness.
Mom (outstanding Sarah Silverman) drinks, pops pills, snorts lines, prowls for men who like doggie.
Stunts and reckless behavior to break the numbness.
Not shown, but probably when she’s on lithium.
When she skips the lith, she swings from belligerent to utterly withdrawn.
Childhood demons might be a cause, or it might be genetic.
Family and friends are trapped with her, or swirling near the edge of her whirlpool.
The soul in a tunnel with no light at either end.