These are the tales of a college student who is visiting his girlfriend at her new apartment... of a certain office worker, on the way back from work... and of a certain office lady who lives in the city...
or in other words, the man whose
voice you've been hearing.
بعبارة أخرى، ذلك الرّجل هو مصدر 
.الصّوت الغريب الّذي كنت تسمعين
Die seltsame Stimme, die Sie hören,
ist die Stimme jenes Mannes.
Ou seja, esse homem é a fonte da voz 
estranha que você está ouvindo.