Louisville's Newest Nightmare - a haunted house in Downtown Louisville. The American Horrorplex is an award winning haunted attraction located at 2012 Northwestern Parkway in Louisville Ky. The American Horrorplex is over 13,000 sq ft of horrific terror. This haunted attraction was created by American Horror Productions to provide “Lou-Evil” with a one of a kind experience for the Halloween season. The fright team that thought up these gruesome scenes have over a combined 50 years experience in the horror and haunted house field. The American Horrorplex harvests the raw power of professionally trained actors to give the guests that dare enter the doors a night of frights that they will never forget.