The four detectives investigate a ghostly noise in one of their houses. What could it be at all? Is it of this world or the next? Whatever it is, they won't stop investigating till they solve the case! Ta torann aisteach aerach le cloisteail i dteach duine de na bleachtairi. Cad ata ann in aon chor? An den saol seo no den saol eile e? Pe rud e fein, ni ghlacfaidh na bleachtairi sos ar bith go dti go reiteoidh siad an cas!
