Guerricaechevarria, Sanchez pen thriller

MADRID — Three of Spain’s most ambitious film production players, Mod Prods., Apaches Ent. and Antena 3 Films, have teamed to co-produce Spanish first-timer Jorge Torregrossa’s thriller “Fin.”

A high-profile Spanish writing duo, Jorge Guerricaechevarria (“Cell 211″) and Sergio G. Sanchez (“The Orphanage”), have penned “Fin’s” script, which is based on same titled best-selling novel by Spaniard David Monteagudo.

Pic turns on a group of old friends meeting in a mountain home for a weekend who are united by a murky episode in the past that still haunts them.

There, a strange incident will keep them isolated from outside contact.

Film toplines Maribel Verdu (“Pan’s Labyrinth,” “Tetro”), Daniel Grao (“Julia’s Eyes”), Clara Lago (“Cousinhood”), Blanca Romero (“After”), Antonio Garrido (“As Luck Would Have It”) and Carmen Ruiz (“Hell with the Ugly”).

Fin,” which has just gone into production, will shoot for two months on locations in the Madrid and Valencia regions.

Cinematographer Jose David Montero (“Apollo 18″), art director Isabel Vinuales (“For the Good of Others”) and film composer Lucio Godoy (“Blackthorn”) are attached to the crew.

Led by Fernando Bovaira, Madrid-based outfit Mod Prods.’ credits include Alejandro Gonzalez Inarritu’s “Biutiful” and Alejandro Amenabar’s “Agora.”

Enrique Lopez Lavigne and Belen Atienza’s Apaches Ent. has produced Juan Antonio Bayona’s Naomi Watts-starrer tsunami drama “The Impossible.”

Apaches also produced Juan Carlos Fresnadillo’s San Sebastian fest opener “Intruders,” toplining Clive Owen, which Antena 3 Films, Spanish broadcaster Antena 3′s film production arm, and UPI co-produced and co-financed, plus Nacho Vigalondo’s “Extraterrestial,” which screens like “Intruders” at Toronto, and Eduardo Chapero-Jackson’s “Verbo,” which world preems at San Sebastian.

Follow @Variety on Twitter for breaking news, reviews and more