Query format, yes or no?

When I follow your query format, I lose a real

marketing hook for my novel, i.e., that there are

three women who kill pedophiles and not just

one, although I definitely have a protagonist

and she has two Nemeses, one of whom

is her own husband.

The query format, which works (like magic) includes a three-sentence opening paragraph that tells the goal and obstacle (s) for the protagonist, and gives a "tease" solution, thereby motivating the agent to keep reading. Learn to write this paragraph so it contains the essence of the plot. It's good practice. Then, by all means, give it your own twist, as long as the basic elements are there.

For example, here's a one-sentence query opener that works:

A pre-teen girl lands in a foreign country, kills

a stranger, steals her shoes, hooks up with

three misfits who help her kill and steal again

to get what she wants.

(The story? Hint! Her yappy dog is named Toto.)