From Eroica with Love

Plot

The series revolves around the adventures of Dorian Red Gloria, Earl of Gloria, an openly gay English lord who is an art thief known as "Eroica", and Major Klaus Heinz von dem Eberbach, an uptight West German NATO major.

The series is driven by frequent inadvertent encounters between Dorian and Klaus, with Dorian often disrupting Klaus's missions. Dorian has developed a fondness for and flirts incessantly with Klaus, who typically reacts with extreme disgust. Other reoccurring characters include Dorian and Klaus's respective subordinates and Klaus's enemies from the Russian KGB.

-Wikipedia