The Mutation

A grimy, claustrophobic creature feature that leans hard into practical effects and urban decay to deliver old-school rat terror.

• Practical effects-driven mutation design that calls back to ’80s creature features without over-relying on CG.
• A gritty, almost documentary-like atmosphere that captures the city’s grim underbelly as a breeding ground for nightmarish vermin.
• Fans of eco-horror and body horror will appreciate the film’s unpolished approach to the monstrous consequences of urban neglect.
• Not for those seeking polished storytelling—dialogue and pacing stumble—but the visceral creature work keeps it watchable for genre completists.