Nightmare in the Daylight (1992)

Sean Farrell (Reeve) is a lawyer working in San Francisco, who in the past beat his long-lost wife, Jean, who disappeared in the 1985 Mexico City earthquake. One day, he notices Megan Lambert (Smith), a Wisconsin teacher visiting the city with her husband Peter (Mason) and son Jamie (Bell). He grows convinced that Megan is his wife, and ignores any denials she is making. After kidnapping her for a short period of time, he contacts his first wife's father, who tells Sean that Megan is not his daughter. Sean, by now, is too obsessed with Megan though, resulting in the woman and her family living in constant fear.