《阿加莎·瑞森探案集第四季》 是马特·卡特导演的作品，发行于2021年（英国），由阿什利·詹森,马修·豪勒,杰森·梅雷尔斯,露西·莱曼,马特·麦库伊,Jodie Tyack,玛西娅·沃伦,Phil Nichol,Jo Wickham,蒂姆·伍德沃德,Maggie McCarthy,凯文·毕晓普,佐伊·特尔福德,Emerald O'Hanrahan,艾玛·康妮芙,露丝·霍洛克斯,乔·惠特利等主演的一部欧美剧。
讲述了： 　　Agatha's in need of a well-earned break and with Christmas just around the corner it looks like the perfect opportunity to relax. When she receives a letter from an old lady begging for protection, she can't help but spring into action.