How many movies have Akio Yoshida and Ichirô Nakayama collaborated on?

They have worked on 4 movies together! Their first movie together was Kaidan Shin Mimibukuro: Dai Ichi Ya (2003) while their highest rated movie together was Tales of Terror: Haunted Apartment (2005). They have not worked together since Tales of Terror: Haunted Apartment (2005). They are most known for their horror films together.