It’s Halloween weekend, which means lots of wickedly fun parties with ghostly goodies and blood curdling beverages. We brought the Mad Scientist himself, Ian Kleinman, who is the chef and owner of The Inventing Room. He showed us some spooktacular cocktails and treats! Halloween is also the one-year anniversary for The Inventing Room, so if you show up on Halloween dressed in costume, Ian will give you a free Sundae! It's located at 2020 Lawrence in Denver. For catering call 303-885-2802.