Spence Wilder
April Kennedy
Susie
Jim
Gunner
Hunter
Victim #1
Victim #2
Victim #3
Victim #4
Victim #5
Assassin #1

When a Brooklyn high school student writes the police code for homicide, 187, inside a textbook owned by teacher Trevor Garfield, Garfield feels threatened. The principal dismisses the incident, but the same student stabs Trevor soon after. Fifteen months later, a physically and emotionally scarred Trevor relocates to California and takes up substitute teaching. To his dismay, his new school is as full of dangerously undisciplined students as his old one—including four Latin Americans and a European American claiming membership in tagging gang K.O.S. (Kappin' Off Suckers)—driving him over the edge.

Adnan is a guy who feels lost after his brother—his only family, died. He feels like he has no one left, even though his girlfriend, Gisel, is by his side. He begins to blame himself for his brother's death. The universe gives him a second chance to relive the times he spent with his brother. However, not everything goes according to plan.

Diego is 17 and is full of life, yet fragile. His best friend Antonio knows and indulges his weaknesses, but he would also like to see him strong and masculine. One night they meet Maria, a breezy natural beauty. To show that he is a 'real man', Diego, is ready to do anything, even to force himself to do things he would never have wanted to do.