अपनी भाषा में प्लॉट जोड़ेंA group of seemingly unrelated strangers all receive a mysterious note stating "I know what you did", which sends their lives into a downward spiral.A group of seemingly unrelated strangers all receive a mysterious note stating "I know what you did", which sends their lives into a downward spiral.A group of seemingly unrelated strangers all receive a mysterious note stating "I know what you did", which sends their lives into a downward spiral.