Complex sentence: Hepburn takes an interest in her father's case files and soon becomes enamored of American playboy Frank Flannigan (Cooper); jealous husbands frequently hire Chevalier to track Cooper.
Split into simpler sentences: Hepburn takes an interest in her father's case files and soon becomes enamored of American playboy Frank Flannigan (Cooper). Jealous husbands frequently hire Chevalier to track Cooper.