Catfish

A New York photographer who specialises in photos of dancers in action is surprised to receive from an eight years old girl a painting she has done of one of his published works. This leads to the modern social network, an online friendship and relationship between the photographer, the young girl and members of her family.
When the photographer starts to sense that all is not as it seems this documentary turns into a contemporary cautionary tale.

Despite clever marketing that urges viewers not to reveal the ending to this documentary I have to say that the general outcome is not unexpected for any reasonable thinking person but the details that emerge are interesting. I found it amusing that the film's makers seem oblivious to the fact that they come across at times as being just as creepy as they intend their targets to appear.