The Widow's Revenge (2022)
Original title: 復讐の未亡人
The Widow's Revenge is a 2022 Japanese-language mystery series. It stars Wakana Matsumoto, Sakurako Konishi and Renn Kiriyama.
Suzuki Mitsu is a talented contract engineer working for an IT company, but it wasn't their benefits package that attracted her. She's working for the company that drove her late husband to suicide, and she won't rest until she exacts her revenge on each and every person responsible.