More than a dozen Angelenos navigate Valentine's Day from early morning until midnight. Three couples awake together, but each relationship will sputter. A grade-school boy wants flowers for his first true love. Two high school seniors plan first-time sex at noon. A TV sports reporter gets the assignment to find romance in LA. A star quarterback contemplates his future. Two strangers meet on a plane. Grandparents, together for years, face a crisis. An 'I Hate Valentine's Day' dinner beckons the lonely and the lied to.

As bass guitarist for a garage-rock band, Scott Pilgrim has never had trouble getting a girlfriend; usually, the problem is getting rid of them. But when Ramona Flowers skates into his heart, he finds she has the most troublesome baggage of all: an army of ex-boyfriends who will stop at nothing to eliminate him from her list of suitors.

A teenager suspects his new neighbour is a vampire. Unable to convince anyone, he tries to enlist the help of a self-proclaimed vampire hunter and magician in this remake of the 1985 comedy-horror classic.

In New York City, Clary Fray, a seemingly ordinary teenager, learns that she is descended from a line of Shadowhunters — half-angel warriors who protect humanity from evil forces. After her mother disappears, Clary joins forces with a group of Shadowhunters and enters Downworld, an alternate realm filled with demons, vampires, and a host of other creatures. Clary and her companions must find and protect an ancient cup that holds the key to her mother's future.

Vampire housemates try to cope with the complexities of modern life and show a newly turned hipster some of the perks of being undead.