How many movies have Kim-Jho Kwang-soo and Kwon Yoo-jin collaborated on?

They have worked on 3 movies together! Their first movie together was Detective K: Secret of Virtuous Widow (2011) while their highest rated movie together was Detective K: Secret of the Lost Island (2015). They have not worked together since Detective K: Secret of the Living Dead (2018). They are most known for their mystery films together.