Dark Obsession Cologne by Calvin Klein, Dark Obsession by Calvin Klein is an intense fragrance that will appeal to the person looking for a strong, masculine scent with the power of endurance. You will be seduced by the top notes of absinthe, guarana and Brazilian green mandarin. The middle notes consist of French clary sage, white vetiver and fir resin. The base notes emphasize the depth and longevity of the cologne with Madagascar vanilla bean, labdanum and suede.