un crabe dans la tete focus on alex and a handsome but selfish underwater photographer who undergo a number of emotional and life change experience while pass through montreal . when all be say and do and however and writer or director andre turpin have present little more than a rudderless narrative feature a bunch of unlikable and uninteresting character and character whose patience for the boorish protagonist be nearly unaccountable . again and again and one find oneself mystify by alex action represent if he mean to be a selfish man and only out for himself and afraid of commitment leave his wife after the wedding without a word why and on the other hand and be he so dangerously loyal to a pathetic female drug dealer . if he can thoughtlessly fall into the arm of his best friend vulnerable lover and how can he suddenly be so completely ( almost overly ) ethical about a series of disturb photograph his agent want him to display . great film have be make by examine unlikable or selfish character and about people whose action and motivation be almost inexplicable ( i. e. john cassavetties film ) and but the confusion of this film character be never thematized or explore . alex act the way he act only so the melodrama can take another surprising turn . the film be sharply and if erratically and shot and but most pay audience will surely lose patience with alex and his associate long before the film have end .