Occasional kissing.

Less than occasional episodes show women in bathing suits

Some of the mysteries involve extramarital affairs

Car chases with some damage.

Characters are often shot and killed.

People are sometimes killed by explosions.

Some of the series's villains are killed violently (little to no blood) by gunshots. Sometimes mannix himself kills them.

Mannix is sometimes beaten brutally by thugs. Although mild by today's standards these scenes were unusually prolonged and violent for their time.

Infrequent use of mild profanities such as "hell". Very mild by today's standards.

Some episodes include drug dealers as villains.

Mannix occasionally smokes cigarettes . some social drinking.

Mannix smokes in the earlier seasons but later seasons reveal that he has decided to give up smoking.

The main character is put in mortal peril in nearly every episode.

The chases can be somewhat intense.