Katherine Ryan stars in the raunchy new comedy “The Duchess” on Netflix.

Canadian comedian Ryan wrote and produced the upcoming series, basing it on her life in London, U.K.

Credit: Netflix

A synopsis reads, “Katherine’s a single mom juggling her career, her tween daughter, her relationship with her boyfriend — and pondering getting pregnant with her ex.”

Netflix adds of the show, “It is meant to be a catastrophe-like single-cam comedy.”

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The newly released teaser shows the character taking her daughter to the pub, talking about having anal sex with her boyfriend in front of a delivery driver and asking her ex to be the father of her second child so both her kids could have a “s**t dad.”

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“The Duchess” launches on Netflix on September 11.