Fear Runs Deep
Movie| Title | Sfida sul fondo |
| User score | 6 |
| Release date | Apr 29, 1976 |
| Genre | Action |
| Director | Melchiade Coletti |
| Production country | Italy |
An engineer has discovered a new special alloy for the construction of submarines and is about to launch it on the world market. To force him to give up the formula, his opponents kidnap his son.
