Who is the killer in ‘The Little Things’? Ending explained for HBO Max movie HBO Max YouTube ‘The Little Things’ on HBO Max has left viewers shocked and confused. The ending of the movie had people wondering – who is the killer? So, what really happened? Rami Malek, Jared Leto, and Denzel Washington have never disappointed the viewers. The trio sure did a marvelous job in the HBO Max’s thriller movie. However, the plot of the movie has left many confused. Viewers have some burning questions about the ending that they are still trying to find an answer for. NOTE: This article contains spoilers for the movie