amy gets clued in by her losing german bidder. >> he said, "amy, it was a rembrandt." for this painting my whole adult professional career." >> rembrandt? the rembrandt? the 17th century dutch master who liked to paint himself? how could that be? it's not every day a real rembrandt just pops up out of nowhere in jersey. >> in jersey? >> in jersey. in bloomfield, new jersey. >> where, this whole time, the landau brothers have been observing yom kippur, the jewish "day of atonement," with their phones turned off. >> maybe one, two days after yom kippur, i returned his call. and i said, "oh, so how'd the auction go?", he said, "well, it actually went quite well." >> and your reaction is? >> i think i actually might've used some profanity. >> when roger called me and told me the amount, and i was -- my jaw just dropped. >> that's the one from the dining room, the one thatd you . >> that was it, yeah. >> it's now your favorite painting. >> right, that's one of rembrandt's best. >> well, in retrospect, john, was it within your scope to know that it's a rembrandt? >> that's a