Henry Kuttner and C. L. Moore’s 1949 Beyond Earth’s Gates is a standalone SF novel1.
Eddie Burton is a rising actor with a promising career ahead of him. Would-be actress Lorna Maxwell would like to have a promising career ahead of her as well. Convinced without proof that Eddie can provide her promising career, Lorna is carrying out a campaign to attach herself to Eddie with all the determination of a school of piranhas surrounding a succulent child. No man of action, Eddie’s countermeasures are limited to hiding in his apartment with the lights off whenever Lorna comes to call.
When Lorna vanishes, Eddie is the logical suspect.