Man in the queue

"Inspector Alan Grant of Scotland Yard is assigned to find the killer and the identity of the victim stabbed to death while waiting to see a musical comedy."@en
"When they found the stranger stabbed to death in the queue outside the theatre, it was his complete lack of identity which struct everyone as odd. Inspector grant if the CID has no choice but to travel deep into the theatrical world in his efforts to build up a picture of this nameless man."@en
"A stranger found stabbed to death outside a theatre lacks any form of identity. Inspector Grant of the CID travels deep into the theatrical world in his efforts to build up a picture of the nameless man and solve the murder."@en