This horror movie, “Basket Case,” released in 1982, tells a darkly humorous story about conjoined twins separated and seeking retribution in New York City. Duane Bradley (Kevin Van Hentenryck), a young man from upstate, makes his way to the less desirable areas of Manhattan, carrying a strange wicker basket and searching for two doctors with questionable reputations. The film is a very graphic, low-budget horr…