1:39:02
If he wants his own key and raincoat...
1:39:04
-...tell him I've gone to Glasgow.
-Right, sir.
1:39:07
-Any questions?.
-No questions.
1:39:09
Call me back
when he leaves the station.
1:39:11
Right, sir.
1:39:15
Well, Mr. Halliday,
have you got it?.
1:39:17
I don't think so.
Where's Mrs. Wendice's key?.
1:39:27
It took me just half an hour
to find it.
1:39:34
But if it was there,
why didn't Wendice use it just now?.
1:39:37
He didn't use it because he
doesn't realize it's there.
1:39:40
He still thinks it's in the handbag.
1:39:42
You see, you were
very nearly right.
1:39:44
He told Swan that he would leave
your latchkey under the stair carpet.
1:39:48
And told him to return it to
the same place when he left.
1:39:52
But as Swan was killed,
we assumed that your key...
1:39:55
...would still be
in one of Swan's pockets.
1:39:58
That was his little mistake
because Swan had done...
1:40:01
...exactly as you suggested,
Mr. Halliday.
1:40:03
He unlocked the door...
1:40:06
...then returned
the key before he came in.
1:40:09
And it's been
out there ever since.
1:40:12
And the key Wendice
took out of Swan's pocket...
1:40:15
-...and returned to her handbag was--
-Swan's own latchkey.
1:40:22
Mind you, even I didn't
guess that at once. Extraordinary.
1:40:25
You know, it had always puzzled me
that no key was found on Swan's body.
1:40:29
After all, most men carry
a latchkey about with them.
1:40:32
And then I had a brain wave.
1:40:35
I took the key
that was in your handbag...
1:40:37
...to his girlfriend's, Mrs. Van Dorn's,
and unlocked the door of her flat.
1:40:42
And then I borrowed her telephone
and called Scotland Yard.
1:40:46
-Why did you bring me here?.
-You were the only other person...
1:40:50
...who could possibly
have left that key outside.
1:40:52
I had to find out
if you knew it was there.
1:40:56
Suppose I had known?.