Death Steps In The Dark (1977)

After the electricity is cut, a train enters a tunnel and a women in a compartment is killed, and one of the other five in the compartment must be the killer, but who? And what lengths will the killer go to to remain free?
A late entry in the giallo boom, this is a very workmanlike entry with very little to recommend it. Director Maurizio Pradeaux sleepwalks his way through the proceedings and brings nothing memorable to entice the viewer to recommend it to anyone. If you have ever seen a giallo before there is no need to see this one. There are signs that the director himself knew this as he has added some off the wall humour that comes across as being totally out of place.
It's a shame really as the initial premise could have been put to much better use.