The storyline follows Kidman’s character Grace Fraser, a prominent psychotherapist whose professional advice comes back to haunt her personal life.
And the actress has admitted it was quite a challenge.
“I’m playing a character that’s very intense, so I’m in the process of ‘shedding’ her now,” she said at the show’s preview in January.
“It’s a very strange feeling. When I’m working on a film, I don’t have time for myself," she continued.
"You’re working on adrenaline, and there’s an enormous amount of fatigue. Now I can do some yoga if I want to. I can go to the beach. I take hot baths with lots of oil. I love oil, and I love bathing in it.”
Of course Kidman’s downtime didn’t last long. The star is currently Down Under filming Nine Perfect Strangers – another series she’s both producing and starring in.
“I went through a huge period of time when I didn’t have good choices,” the mum-of-four explains of her career trajectory of late.
“So many actors don’t have choices, and to even have a choice is an extraordinary opportunity.”
Being more involved in her projects is something Kidman has been doing more and more, starting with the 2017 smash hit, Big Little Lies.
“I wanted to control my fate,” she says of stepping into a producing role alongside Reese Witherspoon for the HBO series.
“As an actor you’re always at the mercy of others, directors especially, and sometimes it can be frustrating. I felt the need to create something from the ground up and that’s why I decided to work with Reese and produce the series.”
The Aussie star is clearly in the midst of a highly gratifying and exciting chapter in her life.
Her 14-year marriage to country music star Keith Urban, 52, has also been a source of immense comfort and happiness for her, and she’s currently revelling in spending more time with him and their two daughters, Sunday Rose, 12, and Faith, 9, in her home country.
“I’m an introvert by nature, pretty quiet – someone who would rather stay at home,” she divulges.
“When I get home, the thing I look forward to the most is being able to hug my children and Keith, and that’s the kind of feeling which will always keep us connected.”