When a savage killer hunts a Chicago neighborhood, a seasoned detective must stop him; but the cop quickly becomes the prey, left with his rookie partner as the only one he can trust.

The logline practically is:

“When a savage killer stalks a Chicago neighborhood, a seasoned but [flawed] detective must stop him, with the help of his [complimentary flawed] rookie partner.”

I keep the rookie partner element because it’s the only thing that differentiates this logline from any other police thriller ever made. Find the flaws.

Can you think of anyhing that makes the story special? Perhaps the killer’s MO? Perhaps the protagonists’ flaws? Or the dynamic between them?

(For example, in “Seven” the MO related to the 7 deadly sins was the hook that made the story unique.)

The following is part of the genre convention, so I wouldn’t bother with it:

“… the cop quickly becomes the prey, left with his rookie partner as the only one he can trust.”

The cop in police thrillers always becomes the killer’s target, in Act Three. So nothing special here.