Saturday, Halloween night, from 9 p.m. to 3 a.m., you'll be able to actually live in the world of HBO's True Blood. How? O'Reilly's Irish Bar will turn into the show's "Merlotte's" club and feature a True Blood costume contest. The winner receives a $100 cash prize. Admission is free and a portion of the night's sales will be donated to Indianapolis area animal rescue groups ARPO and FIDO. For more information or to make a reservation (which is strongly encouraged), call O'Reilly's 317.974.0674, or www.oreillysirishbar.com.