I'd like a line where a dangerous man falls obsessively in love with a woman. Whether he's financially powerful, or physically powerful, he takes it onto himself to 'fix' her life. Taking care of a dad who can't keep his hands to himself, an ex who can't grasp that they're over, or even just lining up the job she's always wanted. I'd like it if he's someone who has trouble connecting or is otherwise carries a callous disregard of others that she becomes an exception to. Whether she tries to rein him in or egg him on is up to the other writer.
Some dark themes apply. I'd love to use Bruce Willis, Jeffrey Donovan, Jason Statham, or Zane Holtz, but I'm not married to a face.