When a black high school football star mysteriously disappears, his four daring friends and their dog set out to find him, unraveling the dark secrets of their small town and a possible serial killer among the town’s elite.

Four teens find themselves hunted by a serial killer who is protected by their town eliate after they start investigating their friends disappearance.

Loose the dog. The dog is nothing to the story. If it is make it the protagonist.

A dog takes his four humans to discover the fate of his owner who was the victim of a serial killer with influence in the police.

My main issue:

"...his four daring friends and their dog ..."

Because of the way it was written, it sounds like all four friends own the dog.

As someone wrote above, mentioning the dog isn't needed. When a dog is part of the storyline, the story is usually family-friendly and wouldn't include a serial killer. Unless you plan on having the dog play a pivotal role in finding the missing football player, why include it in the logline and then have to use the space to clarify who owns the dog.

The movie "A Time to Kill" used race effectively...

In Canton, Mississippi, a fearless young lawyer and his assistant defend a black man accused of murdering two white men who raped his 10-year-old daughter, inciting violent retribution and revenge from the Ku Klux Klan.