A friend of Natalie's ex-husband seemingly commits suicide aboard a locked cabin on a submarine. Monk agrees to investigate, despite his phobia about being on--and beneath--the water. false 2018-11-03 15:09:16 Paris Barclay 7.9 2008 TV-PG tt1268705 374833 41 Comedy Crime Drama Mystery https://www.thetvdb.com/banners/episodes/78490/374833.jpg Casper Van Dien GuestStar https://image.tmdb.org/t/p/original/4BYmpBDA0XFMF4PMokLdZ87Qntk.jpg William Atherton GuestStar https://image.tmdb.org/t/p/original/d4ArFBoywyW3yZ3RuD1KAC0fXiA.jpg 5 7 2008-08-15