When a French stockbroker retires in disgrace and escapes to a secluded island where he falls for a woman concealing her own demons, he must secretly compensate his victims before he can win her heart.

Why? Why will this make any difference to her? She doesn’t know about his past, so why will this affect her at all. Whether she falls in love with him is completely out of his control, surely? Plus, he’s compensating them in secret… she’ll never know regardless.

Why does he have to be French? What difference does that make to the story?

You referred to them as “his victims” but, since you only describe him as a disgraced stockbroker, what are they the victim of?

Why does he have to win her heart anyway? It doesn’t deal with his disgraced past or absolve him in any way. He isn’t described as lonely, or looking for a partner.

I think the idea of a repentant stockbroker helping forming clients who he’s taken advantage of through, say, the crash of 2008, is a good idea. I think the romance side of it feels disconnected. To me, it seems he’s treating this woman in the same way he treated his former clients. How will the audience be on his side?

There’s something in here, but I think it needs work.

Hope this helps.