From Netflix:

When their father disappears, three strong-willed women return to their childhood home and to their equally strong-willed mother. As they search for their patriarch, the dysfunctional family members wind up facing difficult truths about themselves.

What an impressive collection of actors for the family ensemble from Hell! Watching this soap opera may seem familiar because there are so many “family get-together” films just like it. For some reason this new addition to the “Dysfunctional Family Hall of Fame” was for me enjoyable. But then let’s take a look at the roster.

• Meryl Streep (Violet Weston) – drug-addicted widow of recently self-destructed husband, world-class alcoholic Sam Shepard (Beverly Weston)
• Julia Roberts (Barbara Weston) Violet’s daughter – married to but separated from Ewan McGregor (Bill Forham). Their daughter is the renowned vegetarian Abigail Breslin (Jean Fordham)
• Margo Martindale (Mattie Fae Aiken) Violet’s sister – married to Chris Cooper (Charlie Aiken). Their son is the stammering neurotic Benedict Cumberbatch (Little Charles Aiken)
• Julianne Nicholson (Ivy Weston) is Violet’s unmarried daughter who is the girl friend of Little Charles Aiken.
• Juliette Lewis (Karen Weston) is the scatter-brain daughter about to marry her latest boyfriend, thrice-married Dermot Mulroney (Steve Huberbrecht).

Once you get all those relations straight the rest is easy. If you are really confused try the Wikipedia summary.

Just be prepared for some ugly surprises. Nothing special.