True crime stories aren't just an American phenomenon, as seen in Netflix's latest hit series, A Friend, A Murderer. This three-part Danish documentary series dives into a murder suspect who managed to remain undetected by his friends until well after his murder spree began. That leaves the killer's closest friends asking a lot of uncomfortable questions about themselves and what they could have done differently. Now, Watch With Us is sharing the three reasons to watch A Friend, A Murderer on Netflix this week.