M

M - Eine Stadt sucht einen Mörder / A city is looking for a murderer
This classic film by Fritz Lang with Peter Lorre in the leading role is one of the first German sound film productions.

This is of course not a Lacrimosa film, but there is an interesting connection with the Lacrimosa song Schuld und Sühne.

It gets very interesting from 1:41 hours onwards. + I've also put together a playlist for you with songs that were all inspired by M.