Atsuku naru made matenai Sawaki Yūko

熱くなるまで待てない　沢木夕子

Also known as あつくなるまでまてない　さわきゆうこ, 熱くなつまで待てない, I Can't Wait Until It Gets Hot

To a detective, a woman recounts how she escaped from a killer in a hockey mask. The killer had followed her and her boyfriend to a cabin for the summer...