Night Killers

For 300 million years they had existed unchanged - furtive insects scuttling through the shadows. Till modern man began to destroy his environment.. Then came the fateful night when a vicious murderer died before he could burn his latest victim. Ravenous cockroaches devour the corpse, and develop a new craving - for human flesh. Mutating into savagely efficient killers, they prey on the young, the old, the drunk, the injured. Undetected. Unstoppable. Eventually two scientists guess the truth, but no one will believe them - until a chilling disaster strikes! And even then the night killers have an unsuspected weapon.