Iran rejected last week’s Cannes Film Festival award for a film about a serial killer who targeted sex workers in an Iranian Shiite shrine city as “biassed and political.”

On Saturday, Iranian Zar Amir Ebrahimi won the best actress award at the Cannes Film Festival for her performance in “Holy Spider,” directed by Danish-Iranian Ali Abbassi.

Ebrahimi, who fled to exile after a smear campaign over her love life, was honoured for her portrayal of a journalist attempting to solve the serial murders of sex workers in Iran’s holy city of Mashhad.

The Cinema Organisation of Iran, affiliated with the culture ministry, lashed out at the decision, accusing the festival of “committing a biased and political act by praising a false and disgusting film”.

The film presents “a distorted image of Iranian society and openly insults the beliefs of Shiites”, the organization said in an official statement.

It said the film “follows the same path as Salman Rushdie in ‘The Satanic Verses,'” in reference to the Booker Prize-winning British-American novelist of Indian descent.

Iran’s former supreme ruler Ayatollah Ruhollah Khomeini had in 1989 called Rushdie’s work “blasphemous” and issued a fatwa, or religious edict, calling for the author’s murder.

“Holy Spider” is inspired by the true story of a working-class man who killed sex workers in the early 2000s and became known as the “Spider Killer”.

The film, shot in Jordan, depicts Iran’s second-largest city, with its spider-like network of streets leading to the shrine.

Its star, Ebrahimi, began her career in Iran, but it was derailed when a sex tape allegedly of her and her boyfriend was leaked online in 2006.