Theater owner and master of disguise Christopher Gill (Steiger) terrorizes the city streets, strangling women and mercilessly taunting detective Brummel (Segal) who's out to catch him.

But could Brummel guess the deep-seated psychoses of his mysterious killer?

Or will it only come out in the final act?

This 1968 thriller is solidly buoyed by Steiger's bravura performance - certainly the kind of role actors must relish - with Remick and Segal providing nice support.

Touches of well-placed humor punctuate the brisk plot, with a good end showdown on the stage.

Note: watch out for priests with thick Irish brogues!