Schizophrenic (1999)

Iris looks in the mirror every night to voice her frustrations, as if telling a close friend or family member her grievances, but something strange begins to happen. Iris discovers that someone is quietly solving her problems at work, which earns her praise from her coworkers and superiors, but this mysterious person is gradually invading her life—and her love life—forcing her to seek out the truth.

Thriller, Mystery, Horror