Solitude(2023)

Tamás, the successful architect is compelled to do his work from home, so he has much more time to pay a lot more attention to himself and also to his surroundings. A couple is moving in next door. Being shut into his own home, listening to the conversations of the new neighbors he's slowly starting to realize the uncertainty of his own marriage. Because of this he starts to notice some suspicious things about his wife and how she acts.