Jim was pretending to date Molly in order to get close to Sherlock, but he finds that he's actually very fond of the sweet, clever, doe-eyed girl from the morgue.

So the first thing he does after coming back from the dead is kidnap her.

Molly wakes up in the master bedroom of a mansion, with a king-sized bed, a personal jacuzzi, a closet full of beautiful dresses and the stylish clothing she loved but could never afford, a shelf full of her favorite novels, a servant asking if there's anything she needs, and even her cat sleeping on the windowsill.

It all seems like some kind of perfect fever dream until Jim waltzes in.

He's very nice to her, of course. Kind and caring, always paying her compliments, telling her how pretty she is, how smart she is, and always asking if there's anything at all he can do for her. She's treated like a princess.

There are only two things that Molly isn't allowed to do:
1 - contact Sherlock in any way
2 - leave the mansion

After a day or two, Molly finds herself wondering if she even wants to leave. After a week she's happy to stay where she is.

Of course, that's when Sherlock shows up to rescue her.