Our complete Thriller Plot

There is a general plot for our thriller which is the idea that after being told that his dead daughter is in the house the man tries to find her but to no avail, later in the movie it is found that many people see the girl in various positions of danger for instance the delivery boy sees the girl drowned in the pool. But later on all of the people that claim to have seen her all are found dead in the ways that thy claim to have seen the girl die, for instance the pizza delivery boy is found drowned in a pool. The father is first suspected and it his job to prove his innocence while not getting caught in the process.