 When a multi-million dollar diamond heist leaves two murdered victims in its wake -- along with the body of one of the slain robbers -- curious Detectives Goren and Eames chase down blind alleys, unaware that their quarry is a cold-blooded and manipulative master criminal. Eventually, the cops suspect that their killer has imposed his girlfriend on his gang and ponder if the murderous thieves have a mob connection that would permit them to quickly cash in on such a large haul of stones.