However, the suicide of businessman MacIver (William Windom) opens up a whole new can of worms, which leads Leland to the realisation that he was wrong before and there is a whole nest of vipers behind the scene...
Meanwhile we also explore Leland's life in flashback including his troubled marriage to Karen (Lee Remick) and his various run-ins with his superiors and peers. Leland is a troubled soul in a troubled city...
This is a highly entertaining film with Sinatra playing the role with suitable intensity. The film takes a very mature approach to society and policing and was one the first mainstream films to explore homosexuality.
The book which this film was based up also had a sequel which was turned into a movie. That movie was Die Hard, so in a way this is a prequel to the Bruce Willis film!