When the severed head of a Wall Street stock analyst turns up spiked on a horn of the Wall Street Bull, Detective Louis Martelli of the NYPD is assigned to track down the murderer. But why were this victim and the victims of two similar murders that followed singled out for execution? And what would make the murderer go to such unexpected extremes? Martelli eventually learns the answer to this question and tracks down the killer, but not before uncovering...