Cult director Pete Walker stood practically alone during the 1970s
to save British cinema from dreariness with a series of Home County
horrors that included House of Whipcord and Frightmare. House of Mortal
Sin, however, is a disappointment despite embracing controversy and
boasting excellent moments of blasphemous terror. The somewhat slender
story centres on a girl whom nobody seemingly believes when she claims
that she is being terrorised by a Catholic priest. The contrived script
relies too much on mild sacrilege for its effects, instead of concentrating
on more interesting aspects of organized religion and Catholic repression.
Anthony Sharp gives an extraordinary performance as a lapsed Catholic
priest and Susan Penhaligon is an impressively assertive damsel in
distress. Walker stalwart Sheila Keith is on hand to give this warped
morality tale its clever twist.
The story opens with the suicide of pregnant teenager Valerie, after
she has been to confess her sins to her local Catholic priest Father
Xavier Meldrum (Anthony Sharp). Her sister, Jenny (Susan Penhaligon),
is getting the curate all hot under the collar whilst taking confession.
Meldrum is violating the sanctity of the confessional and recording
the confessions, and using the recordings to blackmail attractive
young women for sexual favours. Meanwhile, Jenny’s sister, Vanessa
(Stephanie Beacham), is giving old friend and rookie Father Bernard
Cutler (Norman Eshley) second thoughts about his divine calling. Anyone
trying to stop the crazed priest’s course of “divine justice”
is murdered by such diverse means as incense burners, poisoned holy
wafers or rosary bead strangulation's.