Hello Again (1987) on Netflix

Plot summary

Lucy Chadman, a Long Island housewife, chokes to death on a chicken ball while her sister Zelda reads her tarot cards. Zelda receives a book of spells called The Wisdom of Catagonia and finds one that requires perfect astrological timing, with the moon, the earth and the dog star forming an isosceles triangle. She performs the spell and Lucy appears a year after her death. Lucy cannot simply pick up her life where she left it: her husband Jason has sold their house and married Kim Lacey, and her son Danny runs his own restaurant and has married.