Let Her Out follows Helen, a bike courier who suffers a traumatic accident. As she recovers, she begins to experience strange episodic-black outs, hallucinations, and night terrors-that lead her to discover that she has a tumor, a benign growth that is the remnants of a "vanishing twin" absorbed in utero. Over time, the tumor manifests itself as the dark and demented version of a stranger. As Helen's emotional and psychological state begins to deteriorate further and further, she begins to act out in psychotic episodes that are influenced by her evil twin - making her a danger to herself and her best friend, Molly. 让她跟海伦,一辆自行车快递一个创伤性事故。复苏,她开始经历奇怪episodic-black出局,幻觉,和晚上恐惧使她发现她有一个肿瘤,良性增长的残余“消失的双胞胎在子宫内吸收。随着时间的推移,肿瘤表现为黑暗和精神错乱的版本的一个陌生人。海伦的情感和心理状态开始进一步恶化,此外,她在心理学开始付诸行动