Nicole Kidman, judging solely by the expensive LA-area home of hers, is successful author Brooke Harwood. Her husband passed away some 11 years earlier and she is living a mostly quiet life with a 24-yr-old daughter who has moved back in while trying to get her movie or TV production career energized.
Her daughter works as an assistant for an often juvenile, demanding, and entitled actor, played by Zac Efron as Chris Cole. Strictly by accident Chris meets Brooke, not even knowing who she is. He is smitten, even though later the two characters say that he is 16 years younger than Brooke. (In real life Kidman is 21 years older than Efron.)
The daughter is played by Joey King as Zara Ford. King is one of the better actresses of her generation and her role here is no exception. In fact, even though Kidman and Efron are the bigger stars, and much of the focus in on their budding relationship, the story is more Zara's story. She knows Chris very well and she desperately wants to convince her mother that he is not good for her. Zara's character arc is to respect her mother and her choices.
The whole movie is more about Zara than anything else.
Also in a very good role is veteran Kathy Bates as the grandma,
Leila Ford. She has a special relationship with Zara and is instrumental in helping her face reality.
My wife and I watched it streaming, it is a better movie than we thought it was going to be.