“Vindicta” (** out of four) was a self-indulgent, meaninglessly self-important serial-killer melodrama about a burned-out detective (Sean Astin) and new paramedic (Elena Kampouris) who attempt to stop a vicious serial killer who has been terrorizing the city. Director Sean McNamara obviously watched “Seven” a few times before filming this and film is watchable but too logy and overly familiar to have much resonance. Astin is miscast as a world-weary cop but Jeremy Piven livens things up in a key supporting role.