bert hughes be home alone in his manhattan apartment and try to work out a major change in his trust company when a noisy rat start scratch around his periphery and he become obsess with exterminate it . by the time hughes be through and his whole apartment be nearly exterminate and his friend be keep their distance due to his rat mania . pretty suspenseful and effective rat invasion flick with terrific central performance of peter weller . several memorable moment be the diner table discussion turn to rat and everyone felt uncomfortable while and the end battle with the rat . there be also some very effective jump scene that be find the cat on top of the refrigerator and the toilet scene . overall and of unknown origin be a fine animal attack film that deserve rediscovery . positive .