Both main characters are both on the run and trying to solve a crime they did not commit. As they both continue their journey of trying to solve the crime the stories become more in depth. Both mangas will have you sitting at the edge of your seat. There are definitely a lot of OMG moments in both mangas.
If you're looking for a psychological thriller, then consider giving Aku no Hana and Yuureitou a try. Both series crafts a story with dark themes involving insightful characters. There is manipulation and plot twists throughout both series that plays influence on their progression. In addition, both series has cryptic dialogues and metaphors with creative meanings. Recommended for fans of psychological fiction.
Both series are no stranger to mysteries phenomenons. While their premise are different, they have a similar set of principles that follows serial suspense with a thriller-like feeling. The main characters also becomes part of a series of twists that connects past and present events. While both of them appeals a bit to the horror genre as well, Shinrei Tantei Yakumo is also known for some supernatural elements. Recommended for fans of mystery fiction.