The Oscar winner's federal lawsuit involving a massage therapist who accused him of sexual assault was dismissed on Monday, nearly four months after the accuser died unexpectedly.

The case, filed in US District Court in Los Angeles, was dismissed with prejudice - meaning that it cannot be refiled.

The civil lawsuit, which involved an anonymous masseur who claimed the actor forced him to touch his genitals during a treatment at Spacey's Malibu home in October 2016, was dismissed by the masseur's estate. Spacey has denied the therapist's allegations.

"Contrary to some news reports, Mr. Spacey paid no money to 'settle' the lawsuit," Spacey's attorney Jennifer L. Keller told The Times. "The plaintiff's estate simply decided to dismiss the lawsuit with prejudice, meaning it cannot be (refiled) and we agreed to the dismissal."

The dismissal comes about a week after Spacey posted a portenous video.

Appearing to don his "House of Cards" persona, Frank Underwood, Spacey said he'd made changes in his life and invited fans to cast their vote "for more good in this world."

"The next time someone does something you don't like, you could go on the attack. But you could also hold your fire and do the unexpected. You can ... kill them with kindness," he said.

Two days later, it was reported that Ari Behn, a respected Scandinavian author who accused Spacey of groping him at a Nobel Peace Prize concert, had committed suicide.

Separate criminal and civil cases in Massachusetts were also dropped over the summer. The actor is still under investigation in London for alleged sexual assaults.

Australian Associated Press