= bent on ; besotted with ; dead set on.
Ex: 'Shit Happens' in the story of two flatmates: Halifax, a ex-journalist with a dark past and long lost ex-wife, and Shakra, a college-drop out bent on Halifax's destruction = "A veces las cosas salen mal" es la historia de dos compañeros de piso: Halifax, un ex-periodista con un pasado oscuro y con una ex esposa que no ve desde hace mucho, y Shakra, un compañero de universidad obcecado en la destrucción de Halifax . Ex: Besotted with an imaginary past that never was, the Department of National Heritage has proved unable to provide the national lead that was expected. Ex: The only crippling illness I have is continuing to bandy words with someone who seems dead set on humiliating himself with constant references to rape.

(v.) = have + a bee in + Posesivo + bonnet (about).
Ex: What do you do when a calm puppy is suddenly in a frenzy, as if he had a bee in his bonnet? .

The following video provides you with the correct English pronunciation of the word "obcecado con", to help you become a better English speaker.