Side effects is an interesting psychological thriller. The story is good; with a number of twists and turns along the way. The subject matter is pretty dark; involving the marketing and side effects of prescribed medication.
None of the major characters in the film are nice people, all of them are manipulative and duplicitous, so it is hard to feel empathy when bad things happen to them.
Having said that, Rooney Mara and Jude Law both put in compelling performances. Steven Soderbergh is a reliably good director, and the direction of this film suits the subject matter well. The setting is modern urban and you are made to feel the adversity and frustrations of their day-to-day life.
The dialogue is sharp and the story is clever, a Hitchcock style chiller, that enjoyed a revival in the 1980s, but is out of fashion now. I dislike how calculating everybody turns out to be; every character is using everybody else with no regard to their welfare or needs. Perhaps this is a comment on the pharmacological industry, but it feels implied of the world in general and this is too dystopian an outlook to make easy viewing. The problem is, the acting and directing are good, so you can see their motivation and at times it is tempting to believe that it could be true.
In summary, this is a well made movie, that seems little too cold and analytical for its own good now; however, in the future, with the benefit of hindsight, it is possible, that this might be one of those films that we look back on as capturing the mood of the world at that time. I hope not, but I want someone remind me to watch it again in 15 years time.