Even though Shock opens slow and operates as mostly a slow burn ghost story mixed with crazy person and possession tale as well, it’s a decent and satisfying conclusion to Mario Bava’s career. We can thank his son Lamberto for that, as he helped make the movie along with his dad, a nice final touch.
Daria Nicolodi gives one of her best performances as a woman convinced her son is being possessed by her dead husband. This leads to a lot of crazy stuff happening, particularly coming from her son, who begins as harmless and turns rather evil midway through the movie. Honestly the movie only really becomes interesting in the final act, yet I still dig it as one wild movie with a pretty good ending.