My Friend 'A' (2018)

Aspiring journalist Masuda is working a menial job where he grows suspicious of the loner and mysterious Suzuki. Masuda decides to write an article on his co-worker and new acquaintance whom he comes to suspect is a long-lost murderer. Then it occurs again. A murder similar to the old case is afoot and Masuda is now sure that Suzuki is the culprit.