One day as the heroine (victim) of our story is walking on the beach, hidden in the sands she finds a green rusted copper lamp, and with a smile, she rubs it, remembering the all the nice stories about spirits locked away in bottles.
The bottle, where rusted before almost instantly turns into a shiny red-yellows color with no sign of rust whatsoever and from it comes a lot of greenish red smoke which forms into a half-man. Not unlike the stories.
But the one fact that the stories forgot to mention. The Djinn aren't nice.
That was the pitch. I want to play the Djinn. And he is locked to the bottle indefinately, and he is forced to obey the owner of the bottle. But he is not bound to obey by the spirit of the wish. And he wants his freedom. (Oh, and he's a male locked away in a bottle for at least a century, if not more)