Based on Agatha Christie's legendary mystery novel, this 3-episode psychological masterpiece remains a benchmark for the genre. However, early Vietnamese-subtitled (Vietsub) releases frequently suffered from audio-video desynchronization, corrupted video files, or incomplete translations. Tracking down a version labeled as "Patched" ensures a seamless viewing experience with hardcoded, timing-corrected Vietnamese subtitles, fixed multi-channel audio tracks, and fully restored high-definition video.