First of all its 18 plus... its kind of romance and sexy...
The movie was about a guy likes a woman and he planned everything from beginning to kidnap her.. so one day he pics her up and drags her in his car with a GAS and she falls sleep and then he takes her to his own place,, and he puts her in a room with IRON doors and locks her and remove her cloths so he enjoys watching her naked... then everyday he looks at her naked and play with her... at end the guy ends up in that room and she locks him there...
I would really appricate if someone find the title of this movie for me!!

Sounds like Private Obsession (1995)