After his father dies under mysterious circumstances, a young man gets tangled up in an undercover operation against London’s most notorious crime family.

Hello,
I agree with this: "stronger cause-and-effect link stated between the father?s death and the young man getting involved in a covert operation."

I've been thinking about this logline.

Like I said before I don't think this is interesting enough or even much unique.

So I'd suggest something like this:

"A young man goes undercover and infiltrates London's most notorious crime family to solve the mystery around his father's death."

So we have the hero - the young man - his goal - solve the mystery of his father's death - and we have the villain -?London's most notorious crime family.

Not bad.

But it can be more interesting and unique. We have seen other undercover young men infiltrating the crime world.

So I suggest something like this:

"A young seminarian drops the seminary and infiltrates London's most notorious crime family to solve the mystery around his father's death."

I think this way the story is more interesting and unique. But if you don't agree with me I hope that at least you get the point and you'll try to create an unique twist to your concept.

This would be a movie that I would watch if it had at least one actor that I like. ?The concept is not original enough to make me interested just by reading the logline.