The film stars Juliet Stevenson and Alan Rickman, both up-and-coming stars at the time of its making. Although often referred to as "the British Ghost", its plot really bears no resemblance to that of the Hollywood movie.
Warning: wikipedia contains spoilers
Nina, an interpreter, is beside herself with grief at the recent death of her boyfriend, Jamie, a cellist. When it appears that she is no longer able to cope with life, Jamie suddenly comes back, as a ghost, and moves in with her again. Ecstatically happy, Nina is able to begin to live normally again. She meets Mark (Michael Maloney), a social worker, to whom she is attracted, but is unwilling to become involved with him because of Jamie's continued presence. Meanwhile, Jamie's unearthly habits (he has to have the central heating turned up very high, and brings round his ghostly friends to watch videos and play chess) start to irritate Nina, and gradually she realises she must move on. Jamie, seeing her settled at last, says goodbye as she leaves to live with Mark.