J.K. Rowling is drawing criticism for her new novel, which features a cisgender male serial killer who dresses in women’s clothing.

Vanity Fair reports that the book, Troubled Blood, written under the pseudonym Robert Galbraith, follows detective Cormoran Strike investigating a cold case from 1974. A reviewer for the Telegraph wrote, “One wonders what critics of Rowling’s stance on trans issues will make of a book whose moral seems to be: never trust a man in a dress.”

A Kirkus reviewer also noted Rowling’s decision to have the murderer be a man who dresses in women’s clothing, calling it “a choice that will raise red flags coming from Rowling.”

Rowling has been criticized for her comments about transgender people, which are widely seen as retrograde and hostile. She has tweeted that people who support transgender rights believe that “sex isn’t real” and, in a long essay, referenced the debunked myth that cisgender men transition in order to gain access to women’s restrooms.

On Twitter, supporters of trans rights criticized Rowling for her new book.

“I don’t have patience for people who deny science and target the most vulnerable, whether it’s @realDonaldTrump or @jk_rowling,” tweeted actor and author George Takei.

Michael Schaub is a Texas-based journalist and regular contributor to NPR.