شیکاگو، چهارده فوریه سال 1929. "آل کاپون" موفق می شود خود را به عنوان ارباب جرایم سازمان یافته شهر معرفی کند. فیلم تاریخچه یکی از حملات او به گروه رقیبش را به تصویر می کشد...
The St. Valentine's Day Massacre is a 1967 American gangster film based on the 1929 mass murder of seven members of Chicago's Northside Gang on orders from Al Capone. The picture was directed by Roger Corman, written by Howard Browne, and starring Jason Robards as Capone, Ralph Meeker as Moran, George Segal as Peter Gusenberg, and David Canary as Frank Gusenberg.