NEW IDEA:
A 30 year old nympho has the lease on a broken down apartment block. She's the neighbourhood bicycle - everyone's had a ride. One day, a frightening, mysterious stranger rents one of her rooms. She tries her ardest to seduce him but gets rebuffed repeatedly, until one night.
He forces his way into her apartment, has his way with her, and then leaves. This goes on for weeks, and then he goes missing. The police come knocking on her door for information. From the other side of the tracks, a bunch of hoodlums come knocking as well. Apparently, her tenant has something they all want, and everyoe thinks it's with her...