Evil intentions omnibus - Margaret Yorke

FIND ME A VILLAIN:
A chance encounter seems to offer Nina an opportunity to recover from the shock of her husband divorcing her, and she agrees to house-sit for her new-found friend. But a series of anonymous telephone calls makes Nina fear she has attracted an unwelcome suitor - or is it the man who is brutally murdering women in a nearby village? Or would it be one and same person?
CRIME IN QUESTION: Denis is living on the edge of society: neglected and unwanted he experiences the sort of desperation that will tip into lawlessness at the drop of a monkey wrench. And he does become an accessory to a cunningly contrived crime, only it results in murder and it seems Denis may be the next victim.
THE COST OF SILENCE: Emma had been an invalid for many years, caringly looked after by her popular husband. Her brutal murder shocked even the most experienced of CID detectives, and caused a rash of dark rumours and idle conjecture throughout the quiet market town. It also created a cacophony of skeletons rattling in the most unlikely cupboards, and rapidly proved that to someone the cost of silence is death ...