In April 2014, Singer was accused in a civil lawsuit of sexual assault of a minor. According to the suit filed by attorney Jeff Herman, Singer is alleged to have drugged and raped actor and model Michael Egan in Hawaii after meeting him at parties hosted by convicted sex offender Marc Collins-Rector in the late 1990s. Singer's attorney called the allegations "completely fabricated" and said Singer planned to countersue. Singer denied the allegations in a statement, calling them "outrageous, vicious, and completely false." On May 22, 2014, Singer's attorney presented evidence to Federal District Judge Susan Oki Mollway stating that neither Singer nor Egan were in Hawaii at the time. In early August 2014, Egan sought to withdraw his lawsuit via a Request for Court Order of Dismissal, and asked that it be granted "without prejudice or an award of costs or fees, in the interest of justice."
In May 2014, another lawsuit was filed by attorney Jeff Herman on behalf of an anonymous British man. Both Singer and producer Gary Goddard (who was also named separately in the first case) were accused of sexually assaulting "John Doe No. 117." According to the lawsuit, Goddard and Singer met the man for sex when he was a minor and engaged in acts of "gender violence" against him while in London for the premiere of Superman Returns. The charge against Singer in this case was dismissed, at the accuser's request, in July 2014.
Singer was cited in the 2014 documentary film on child sexual abuse in Hollywood, An Open Secret, but details of Egan's allegations were omitted after Egan withdrew his lawsuit during the film's production. Author Bret Easton Ellis alleged that two of his former partners had attended underage sex parties hosted by Singer and fellow director Roland Emmerich.