A stalker is someone who repeatedly follows, harasses, or intimidates another person, often causing fear or distress. This behavior can include unwanted communication, monitoring, or showing up uninvited at the victim's home or workplace. Stalking can occur in various forms, including physical presence, online harassment, or through third parties. Stalking is considered a criminal offense in many places and can have serious legal consequences. Victims of stalking may experience anxiety, depression, and a sense of helplessness. Support services and legal protections, such as restraining orders, are available to help those affected by stalking and to ensure their safety.