Love of money, as they say, is the root of all evil. In “The Lottery Ticket,” by Anton Chekhov, it's the prospect of winning a large sum of money that proves to be a major source of evil, generating considerable tension between an ostensibly happy husband and wife.
Before fate dangled the prospects of phenomenal riches before Ivan Dmitritch and his wife, Masha, they were an ordinary, middle-class couple leading what appears to have been a fairly contented existence. But when it seems that Masha's ticket has won the lottery, their heads are suddenly turned, and they start fantasizing about how they will spend their imminent windfall.
In doing so, however, they start to become deeply distrustful of one another. Both Ivan and Masha quickly come to believe that the other is going to be negatively changed by their sudden good luck. Ivan is worried that Masha will either abandon him or use the money to control him. As for Masha, she resents Ivan for wanting to spend what is, after all, her money. (It was her ticket that won the lottery.)
In both cases, what we can see is a prime illustration of the way that money—or in this case, the prospect of money—can corrupt the soul. What was once a contented marriage has been contaminated by mutual loathing and suspicion, and all because of a lottery win that turns out to be no such thing.