The first thing I thought of was a stalker. Happens a lot with people on TV and in movies.
She might have been followed home and when she put her key in the door the man pushed in after her.

The second thing I thought of was:
The doorbell rings. She answers the door. Someone who she may or may not be acquainted with pushes his way in and shoves her back to the bedroom. (That happened to a friend of mine) That’s why I’m scared to pieces to answer the door to strangers. And there are lots these days - damn door to door solicitations for everything from magazines to petitions to political crap.

So those are two ways a stranger can get into a woman’s bedroom without breaking in.

If she was out the night before maybe someone “escorted” or followed her home and pushed their way in.

Another thing I thought of was an acquaintance/friend or professional acquaintance whom she trusted enough to have in her home but who attacked her. That also happened to a friend of mine.

Or it could have been a date that went really bad. Still not her fault. And that happened to a friend of mine.

The problem, Sean, with what you are suggesting is the way you that you are suggesting it SOUNDS like you are placing blame on her.

Of course the police are going to investigate her whereabouts the evening before. But jumping to the thought that she was out at a club, that it had to be someone she invited in makes it sound like it was her fault and/or someone she knew. Is that what you meant?

Listen to yourself you state she is “good looking” does that suggest she was at a club the night before because she is good looking?

If She was not good looking you would not assume she went clubing the night before?

This is an insult to ugly women who go clubing as well.

Read carefully.