The Bet (2020) -

That man is (Douglas Hodge), a "sad sack" salesman who is in no mood for romance or conversation. The film follows Isabel’s increasingly desperate and manipulative attempts to win the wager, which leads her to cross professional and ethical lines as Albert turns out to be a sales representative for her own company. Critical Analysis and Themes

Unlike typical romantic comedies, The Bet is often described by critics as a "portrait of marriage that does much to discredit the institution". The Bet (2020)

Reviewers from Christian Sauvé note that the film is "sad, depressing, and unlikable by design," often failing to land the "comedy" part of its genre. That man is (Douglas Hodge), a "sad sack"