Yes. Kit has an arguable case in tort law.
Tort results when an entity or individual inflicts injury on another whereby the injured party can sue for the damages caused. As a result of negligence by the manufacturing company, Kit has been diagnosed with clinical depression. As the plaintiff, he has a legal right to seek compensation from the defendant for the damages caused to his health and well-being. This tort falls under the category of negligence which results when an entity (manufacturing company) fails to provide its duties as required to other people (consumers).