Psycho: a hair-raising tale

The plot centres on a two-storied house where a family of three, the husband, wife and their only child come to live. The other members of the house are the caretaker and the guard. Then the tale unfolds while the members of the house receive a mysterious call from a dead person, a strange email, blood dripping out from a tap, and the sudden fall of a chandelier. These make the wife so depressed that her husband contacts a psychiatrist immediately. But the twist comes when the psychiatrist also experiences the same inexplicable things, and that makes the doctor curious about the family members. So he starts to observe the members secretly and at last he discovers that a mentally sick person has done those freakish things. Who is that psycho anyway?