Codename Villanelle First North American edition.

Villanelle (a codename, of course) is one of the world's most skilled assassins. A catlike psychopath whose love for the creature comforts of her luxurious lifestyle is second only to her love of the game, she specializes in murdering the world's richest and most powerful. But when she murders an influential Russian politician, she draws a relentless foe to her tail.