A few year s before he we nt on to ma ke a big spl ash in the  cannibal  sub-genre,  Ruggero  Deodato dir ected this su ccessful  rip-off o f Roman Polans ki&#039 ;s brilliant Kn ife in  the Water. Natu rally, b eing an Italian f ilm - there& #039;s  more of a fo cus on sex tha n the re lationship between the c entral co uples, b ut the c laustro phobic atmosp here and  entertaining c haracters  help to keep the ten sion... (展开全部 ) A few years  before he wen t on to ma ke a big s plash in the canniba l sub-g enre, Rug gero De odato direc ted this  successful rip- off of Roman P olanski&#03 9;s brillian t Knife in  the Water . Naturally, being a n Italian  film - there& #039;s more  of a focus  on sex than  the rel ationship bet ween the centr al couples,  but the  claustropho bic atm osphere and ent ertaining ch aracter s help t o keep the t ension bubbli ng over, whic h ensure s that the movie is i nteresting for  the duration . The fil m doesn&#03 9;t have  nearly as muc h 'bite ' as C annibal Hol ocaust and  most of  the rest of Rug gero Deod ato' s filmography , but it 's obvi ous that  even with this early f ilm; Deodat o is a  director with the potential  to make a mar k on cinema. The plot i s simple in th at it ju st focuses on two couple s. George and Silvia invite  Irem and Barbar a for a we ekend cruise on their y acht. I t soon trans pires that G eorge isn' t the most s ensitive ma n to eve r live, and  Silvia doesn&# 039;t seem to  mind him t reating he r badly. The  situatio n escalates,  and Irem an d Barbara join forces with S ilvia for vengeance aga inst Ge orge... and thre e way sex, o f course.A fe w years b efore he went  on to make a  big splash i n the ca nnibal sub-ge nre, Rug gero De odato di rect