A young man inadvertently gets his lady friend pregnant. Being the persuasive gent that he is, the young man convinces his girlfriend that it would be in her best interest to skip the hospital visit, and instead check out Big Mamma’s House of Whores. In addition to being a whorehouse, it is also conveniently a fetal evacuation clinic. The young lass is drugged and tugged (coat hanger style), and before we know it, the fetus is flushed into the New York City sewer system.
Once the girl awakens, the realization sets in that her unborn child has been skewered out of her like an embryonic kebab, and flushed down the drain. Little does she know her little blossom is still alive and convulsing in a puddle of toxic sludge. This convulsing critter has hastily mutated into a shape-shifting monster menace, with a vengeance.