My sister is a serial killer

When Korede's dinner is interrupted by yet another call from her sister Ayoola, she already knows what will be required of her: bleach, rubber gloves, nerves of steel and an empty stomach. She will have to save her careless sister, who has already killed her third boyfriend. Korede should go straight to the police, but she loves her sister and always protects her. At least until Ayoola starts dating Korede's colleague, with whom she is hopelessly in love...