Watcher

American couple Julia and Francis relocate to Bucharest, moving into an apartment building with a large picture window. While Francis works long hours, Julia grows unnerved by a man in the building across the street, who watches her on a daily basis. Her fears are heightened when she learns of a serial killer, dubbed "the Spider" by local media, who is decapitating young women. In the city one day, she senses a man following her to a theatre and a supermarket, but when Francis and Julia visit the market to review security footage, it proves inconclusive.