2015 | 6 Episodes

Season 1 of Det sitter i väggarna premiered on October 30, 2015.

2016 | 8 Episodes

Season 2 of Det sitter i väggarna premiered on November 1, 2016.

2017 | 8 Episodes

Season 3 of Det sitter i väggarna premiered on October 31, 2017.

2018 | 6 Episodes

Season 4 of Det sitter i väggarna premiered on November 6, 2018.

2019 | 6 Episodes

Season 5 of Det sitter i väggarna premiered on August 12, 2019.

2020 | 8 Episodes

Season 6 of Det sitter i väggarna premiered on August 31, 2020.

2021 | 6 Episodes

Season 7 of Det sitter i väggarna premiered on September 2, 2021.

2022 | 6 Episodes

Season 8 of Det sitter i väggarna premiered on August 22, 2022.

2023 | 6 Episodes

Season 9 of Det sitter i väggarna premiered on August 17, 2023.

2024 | 6 Episodes

Season 10 of Det sitter i väggarna premiered on September 15, 2024.