Movies: Known criminal

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After a jeweler hires a private detective to help him find $50,000 missing from his company, he is murdered while attending a society party; and the private eye, aided by his comely secretary, vies with a bumbling police detective to find the murdere...

An owner of a new house invites his old friends to visit it - Detective, Grandpa and you (the man with the camera, who can be anyone). After the guests check in, the host gets a strange call and leaves. After a while, a noise is heard outside. When t...