Audio problem: Several times during the episode, when someone is walking on a rug, the sound of footsteps is that of a hard tiled floor.
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Visible crew/equipment: When the cop grabs the coffee pot, a filming crew member with blue trousers is reflected on it.
Character mistake: When the corpse is taken out of the water, he moves his mouth.
Answer: It was never revealed what caused Frank's death.
raywest ★