Time Out says
Get set for sky-high spooking at this Halloween night above the capital. A big top will be erected in Mondrian London's Rumpus Room and scandalous performances will be taking place throughout the night. Fright-themed cocktails will be available, Henry Relph will be on the decks and a makeup artist will be on hand to transform guests during the witching hour. Book in advance via the Twisted Circus event page.