After being bitten by a bat in a cave, a doctor undergoes an accelerating transformation into a man-bat, which ruins his vacation and causes considerable distress for his wife.After being bitten by a bat in a cave, a doctor undergoes an accelerating transformation into a man-bat, which ruins his vacation and causes considerable distress for his wife.After being bitten by a bat in a cave, a doctor undergoes an accelerating transformation into a man-bat, which ruins his vacation and causes considerable distress for his wife.