Sumas y Restas

Sumas y Restas
Theatrical release poster
Directed by	Víctor Gaviria
Produced by	Coproducción Colombia-España; Latin Cinema Group / La Ducha Fría Producciones / Latino Films / A. T. P. P. Producciones
Screenplay by	Víctor Gaviria Hugo Restrepo
Starring	Juan Uribe Fabio Restrepo Alonso Arias María Isabel Gaviria Fredy York Monsalve Ana María Naranjo José Rincón
Music by	Víctor García
Cinematography	Rodrigo Lalinde
Edited by	Raúl Arango Víctor Gaviria Hugo Restrepo
Distributed by	Latino Films
Release date	23 September 2004
Running time	108 minutes
Country	Colombia
Language	Spanish

Sumas y Restas (English: Additions and Subtractions ) is a 2004 Colombian drama film written and directed by Víctor Gaviria. The plot follows a young real estate developer who ventures into cocaine trafficking lured by the opportunity of making money fast, but his life descends in a spiral of drugs and violence. As he did in his previous films, Víctor Gaviria opted to cast non professional actors.

Santiago is a young engineer who owns a prosperous company as a real estate developer. With a wife who loves him and a baby boy, Santiago enjoys a comfortable life between an apartment in Medellin and a large recreational farmhouse in the country side. In 1984, cocaine trafficking is rampant and many of those who buy the properties built by Santiago are drug dealers laundering money. Facing a shortage of cash need it to end his latest building project, Santiago asks for a loan form his father, owner of a transport company, but his old man can't provide any economical help then. During a party with friends at his farmhouse Santiago is lured to get the money he needs from one of his friends who is a wealthy drug dealer. Although entice to the heavy partying, money and drugs that comes with the business, Santiago is initially reluctant to get involve dealing with drugs.

One of Santiago's business partners, nicknamed 'el duende' (the goblin), introduces Santiago to Gerardo, a humble, but increasingly wealthy man whose front business is a mechanic's shop and son of one of the former employees of his father. In reality, Gerardo is making a fortune with a secret laboratory preparing cocaine's paste. Gerardo has many contacts in the rural region of Frontino, Antioquia were the authorities turn a blind eye to his rustic laboratory to process cocaine.

Gerardo takes Santiago to his laboratory and makes him business partner. He not only can use Santiago's trucks to transport the chemicals needed to process cocaine, but wants to sell the drug to Santiago's drug-dealers friends who transport the drug to the United States. Lured to the temptation of easy money and heavy partying, Santiago gets increasingly involved in cocaine tracking. Gerardo, a man with no education and of cultural background with little in common with Santiago is nevertheless charismatic and offers him a warm friendship, money, decadent parties, easy women, alcohol and drugs. However, all this weakens the relationship between Santiago and his family

Santiago involvement in drug-trafficking increases. One of his contacts, a powerful drug dealer, nicknamed 'El Primo', buys the cocaine produced by Gerardo to send it to the US in a deal in which Santiago has heavily invested. The transaction fails miserably. Once in the USA the cocaine is revealed to be of very low quality. Santiago is made responsible for the failure by both parties, el primo and Gerardo, who also blame each other.