Dark Obsession Cologne by Calvin Klein 4.2 oz Eau De Toilette Spray for Men. Immerse yourself in the addictively dark sensuality of dark obsession by calvin klein. This opulent fragrance for men is intensely masculine, making it ideal for any man who wants to release his inner alpha male. The composition is heady and aromatic for maximum staying power, no matter how hard you work or play. It starts out with top notes of bitter brazilian green mandarin and absinthe blooming into a heart of white vetiver and french clary sage before mellowing down to a sweet body-clinging note of madagascar vanilla bean.