The phrase refers to open directory listings on web servers. In the early 2000s, many websites misconfigured their servers, allowing anyone to browse folders of files – including movies, music, and software. Hackers and pirate communities still exploit this today.
$$ \textIndex of Love = \sum_i=1^n (w_i \times v_i) $$
Love 911 tells the story of an unlikely romance between Kang-il (played by Go Soo), a grieving firefighter who blames himself for his wife's death, and Mi-soo (played by Han Hyo-joo), a cold, career-driven doctor facing a malpractice lawsuit. Mi-soo needs Kang-il to testify on her behalf, so she volunteers as a paramedic at his station to win him over.
: A brilliant but cold-hearted doctor who faces a medical malpractice suit after a misdiagnosis. To save her career, she needs a character witness and sets her sights on Kang-il.