Tengoku to Jigoku: Psychona Futari (2021)

Mochizuki Ayako is a 35-year-old detective who works hard to seek justice, but she lacks flexibility. While investigating a murder case, she targets Hidaka Haruto as a murder suspect from her collected evidence. Hidaka Haruto is a chemistry researcher, and he runs his own company. He is smart and proficient with his work, but he is also a psychopathic murderer. Right before Mochizuki Ayako arrests him, their bodies get switched. (Source: AsianWiki, edited by Seni Seni at MyDramaList)