Cook spaghetti in a large pot of boiling salted water until al dente (cooked just right). Meanwhile, medium heat olive oil in a heavy skillet or cast iron frying pan. Add shrimp and cook for 2 minutes, turning once. Drain in a separate skillet, pour cream, stir in tomato sauce, curry powder, chili pepper and heat to a light boil. Add shrimp, bell pepper and cook for 2 minutes.
Drain spaghetti (do not rinse) and add it to the skillet containing the shrimp and spaghetti sauce. Cook for 1 minute over medium heat, stirring lightly to mix. Salt to taste. Arrange spaghetti and shrimp on a platter and serve.