Since its premiere last month, the new series “Heartstopper” has become a standout hit for Netflix, which is all the more impressive given the deluge of streaming content each week.
But watching one or two episodes, it’s easy to see why it has become so popular. It’s a coming-of-identity story for young adults that doesn’t talk down to its viewers, many of them more the age of the young heroes in this story than the adults.