In the courtroom, a drama unfolds to prove that Vincent Calloway killed his
father to inherit the family oil holdings. Was the motive for murder the alleged faked robbery, or tampering with the will? The stress of questioning causes a witness to collapse, but by hiring Philip Marlowe, , Lomond hopes to blow holes in the case.
At a diner, Marlowe learns plenty of details that could include blackmail as a motive, and there’s plenty of folks who would want old Homer dead. Philip stirs up emotions, as he irritates Vincent’s wife. Does a slap in the face count as a thump on the head?
More poking around doesn’t seem to bring out any further clues. After a little extra hide and seek, Marlowe closes in, with his .38 in hand, to face off with the real killer.