Playboy is being sued after a man claims he suffered serious injuries during the mansion's infamous Halloween party.
Michael Jed says he attended Playboy's 2013 Halloween bash and was approached by security guards during the party. Jed says they told him his wristband wasn't legit so they called the cops and placed him under citizen's arrest. Jed says he tried to make a run for it after waiting an hour ... big mistake.
According to the lawsuit, security guards beat Jed to a pulp ... he suffered trauma to his spine, bruises, contusions and sprains to his neck, back, shoulders, arms, legs and wrists.
On top of all that, Jed says he was arrested by cops but later released without any charges.
He's asking for unspecified damages including loss of earnings.
We reached out to a rep for Playboy ... so far, no word back.