Primal mafioso decides to confront the girl he’s been chasing on and off for years at a film production on an island. As the gap between them is closed he starts to understand how his own people manipulate him, using her to keep him malleable.

What's a Primal mafioso?

"decides to confront the girl". In loglines characters should not "decide" to do something. They should just do. Thus: "he confronts the girl"

"he starts to understand". Better: "he realizes"-- it's better to use active verb forms, not passive.

"...how his own people manipulate him..." So what does he DO about it? How does he take charge of his own life, his own fate? What is his objective goal after his epiphany?

Who opposes his effort to achieve his objective goal?

What are the stakes? What does he stand to lose if he fails?