On Saturday, I was browsing DVD's in the local library. Suddenly I remembered 'Der Alte' (a.k.a. The Old Fox).
This is a TV serial I used to watch on TV when I was a young kid. It is originally produced in german, but it was dubbed in english. I don't understand german anyway ;) It's about a german detective Herr Koster played brilliantly by Siegfried Lowitz. I still remember the story about a person who used to poison his victims giving them chocolates.