Are you afraid of the dark?

Written by Sidney Sheldon, the novel is the story of 2 women fighting against a power greedy man, for whom their husbands worked and were killed by.
Kelly Harris is happily married to Mark, while Diane Stevens is to Richard.
Diane is recently involved in a trial of a murderer and is worried her life would now be affected, but the bad news comes in a different route. Her husband is murdered and is considered to be having some sort of an affair with a mysterious Olga. The company he was working for, Kingsley International Group is also puzzled over his death, as Mark, another employee is also mysteriously dead, supposedly due to suicide.
Kelly Harris is devastated when she hears of Mark's death and she can't believe that Mark would be so unhappy to be committing suicide. She becomes hardened and being a popular model, shuts out everyone out of her life. Although she responds to Kingsley International Group's invitation.
Owner of Kingsley International Group (KIG), one of the largest think tanks in the world is Tanner Kingsley. He invites Diane and Kelly to meet with them. Once he meets them, he orders his thugs to kill them.
To maintain his soft image, Tanner keeps his handicapped brother, Andrew with him. Andrew was not always handicapped. An accident lead him to the present state. Tanner's true colours appear as they are in private.
When Diane leaves the meeting with Tanner, she waits until Kelly returns, as she realises there might be something fishy in the fact that both their husbands died while working for the same company. As they have tea together, an assault on both happens. Diane mistakes it to be the assault by the mob she testified against, but finds out that it wasn't them.
Although Kelly leaves Diane, she finds out she is being followed everywhere and returns to Diane to sort the fuss out. Eventually, they realise someone is out to kill them. Innocently, they inform Tanner their every move and at a point, they realise that it is him who is trying to kill them.
From then on, it is a wild goose chase. They escape every attack of Tanner quite close. Along the way, they also find out about other employees of KIG, who are also killed.
They decide to contact a big shot and attempt to speak with the senator, but unfortunately, that is a trap and by stroke of luck, they are spared alive and they escape.
Andrew's thoughts and memories return to him, as Tanner and his love are moving to their paradise and he destroys them with the same machine that Tanner was extremely proud of having.
A very fast paced and well written thriller. Definitely worth the read.