The Secret of the Black Trunk
Das Geheimnis der schwarzen Koffer (original)
A series of knife murders have an odd feature about them; the victims find that their luggage has been packed for them just before their deaths. Scotland Yard investigates, and discover that the murders are linked to an addictive drug called Mescadrine.
Starring Joachim Hansen, Senta Berger, Hans Reiser, Peter Carsten, Chris Howland, Helga Sommerfeld, Leonard Steckel, Stanislav Ledinek, Elfriede Irrall, Kurt Waitzmann
It's a thriller and crime movie, and has a rating of 5.7 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from Netherlands.