Ove, a grumpy, isolated retiree who spends his days enforcing block association rules and visiting his wife's grave, decides to give up on life until an unlikely friendship develops with a boisterous young family that moves in next door.

Inspector Erik Winter in a dedicated, yet tormented Swedish investigator. Winter and his wife, Angela, both juggle demanding careers as they face the challenge of raising two young daughters. Family provides a refuge for him, away from work where he is constantly faced with the darkest secrets of the human psyche. Never satisfied with just solving crimes, Erik Winter's motivation goes much deeper, he wants to understand. But sometimes solving a mystery...