English crime novelist Charles Latimer is travelling in Istanbul when he makes the acquaintance of police inspector Colonel Haki, from whom he hears of Dimitrios - a criminal. Latimer decides to retrace Dimitrios' steps to gather material for a new book. In entering Dimitrios' criminal underworld, h...

English crime novelist Charles Latimer is travelling in Istanbul when he makes the acquaintance of police inspector Colonel Haki, from whom he hears of Dimitrios - a criminal. Latimer decides to retrace Dimitrios' steps to gather material for a new book. In entering Dimitrios' criminal underworld, he realizes that his own life may be on the line.