I totally believe in spirits, but from what you are describing, it sounds more like a poltergeist, especially with the shaking of the door and moving of objects, etc.
A
poltergeist is a
paranormal phenomenon which consists of events alluding to the manifestation of an imperceptible entity. Such manifestation typically includes
inanimate objects moving or being thrown about, sentient
noises (such as impaired knocking, pounding or banging) and, on some occasions,
physical attacks on those witnessing the events.