All this is sheer bakwas.. there is big plot..something as big as the Kidney racket, hidden in this, in which probably the doctors were involved. They are definitely involved in the murders, otherwise how can both parents sleep so unaware of the happenings in the house.Four men coming into the house(Raping the daughter, as some of the newspapers report!) and then taking the life of two people?, and the parents sleeping.. Bakwaas!! The doctors who are rich and influential people are instigating the servants to take the blame on themselves so that the bigger plot can be kept under the covers! Otherwise Can the servants, who are not obviously very rich or influential, get the post-mortem reports changed?? And also one of the readers has rightly pointed out... Can a Khukri be flushed in a drain?? Now thats what I call.... BAKWAS!!