Found this Arthouse film trailer via @lookluc who is the film's director. I really like the oversaturation, it's lush.

Struggling if the existence of his love is real or not, Matthew embarks on a train journey to find it. As he travels without a fixed destination and searches for his beloved, he begins to hallucinate between imagination and reality, trying to realise which is which. Was it true love or just metaphysical?