Dragnet

Man claims to produce films, but is in pornography.

Twin girls are missing.

Old man and daughter are burglarized.

Murderer orders same drink and plays same song at every bar.

Stuff happens at the station on New Year's Eve.

Friday and Smith crack down on teenage gangs.

Old man named Oskar brings in stolen property he claims he found.

A burglar takes only some of the money from the businesses he hits, leaving an empty milk bottle behind at every scene.