Obsession ending explained

What happens

I can't responsibly describe the final scenes, because the material I have doesn't include them. What it does say is that the closing stretch settles what he owes the person his wish affected, and what he will give up to face it.

The last image

I can't describe the last image with certainty, so I won't guess at it.

What it says

The ending turns on that question of what he owes. The film asks whether wanting someone can ever be innocent when it becomes a wish for control. So it closes on his accountability, not on whether the wish worked.