“Blood Brother (Basket Case)” is an American horror comedy film directed by Frank Henenlotter, released in 1982.
“In New York, a young man rents a small apartment. He arrives with a wicker basket that intrigues his neighbors. Gradually, it is revealed that the basket contains his siamese twin brother, a rather monstrous creature. Together, they decide to seek revenge against those responsible for the failure of their separation— their father and a surgeon.”