Unholy Matrimony

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20/20
7th April 2023 1 hour 20 mins Season 46 Episode 26

An open marriage, a secret affair, and a sinister plot for murder.

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Season 46 · Episode 29

Secrets of the Lake

Investigating the remains of victims found on the bottom of Lake Mead, NV as the reservoir water level drops due to drought. So far, Thomas Erndt, Claude Russell Pensinger and Donald P. Smith have been identified, submerged for decades.
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01 David Muir profile David Muiras Self - Anchor 02 Deborah Roberts profile Deborah Robertsas Self - Anchor 03 Roone Arledge profile Roone ArledgeCreator
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