'I think audio is 90% of what scares people in horror movies': Undertone director Ian Tuason on why he chose to focus on sound for his directorial debut Undertone's sound design has been a huge selling point for the horror movie, and director Ian Tuason explained why he wanted to focus on it. #horror_movies #Ian_Tuason #director_Ian #Tuason_explained #debut_Undertone #Undertone_director #Undertone_sound
