April Fools (2015)

both are sort of six degrees of separation stories. One takes place on April Fools day and the other during Christmas holiday

a lot of things are happening in the beginning. but all parts will make sense near the ending. both are really awesome movies

They have the same writer/director, same ambiance and multiple actors (Okada Masaki / Eiko Koike / Masato Yano ) in common

Both contains more than 1 stories that indirectly connected to each other.